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Math Problem of the Week
161 topics • Page 3 of 4 • 1, 2, 3, 4
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- Diophantine equation x^2=y^5+7
by Guest » Fri Feb 14, 2014 10:08 am - 9 Replies
- 3084 Views
- Last post by Guest
Wed Apr 29, 2015 5:46 am
- Diophantine equation x^2=y^5+7
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- Calculus
by Guest » Thu Apr 09, 2015 12:20 pm - 2 Replies
- 2318 Views
- Last post by Guest
Sat Apr 11, 2015 5:12 am
- Calculus
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- The minimum of cos (a) + cos (b) + cos (c)
by Guest » Sat Jan 31, 2015 4:50 pm - 1 Replies
- 4600 Views
- Last post by Guest
Sun Feb 01, 2015 5:55 am
- The minimum of cos (a) + cos (b) + cos (c)
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- Smallest distance between two functions
by Math Tutor » Mon Jan 03, 2011 9:40 am - 3 Replies
- 4344 Views
- Last post by Guest
Wed Dec 10, 2014 12:26 pm
- Smallest distance between two functions
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- Trigonometric expression
by Math Tutor » Tue Jun 24, 2014 9:37 am - 2 Replies
- 2966 Views
- Last post by Math Tutor
Thu Jun 26, 2014 2:49 am
- Trigonometric expression
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- Let O be circumcenter of a triangle ABC
by Math Tutor » Mon Feb 17, 2014 4:44 am - 6 Replies
- 3115 Views
- Last post by Guest
Wed Feb 26, 2014 4:07 am
- Let O be circumcenter of a triangle ABC
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- Calculate the coordinates of C & D
by mwin002 » Mon Jan 27, 2014 9:05 pm
- 5 Replies
- 2198 Views
- Last post by Guest
Tue Jan 28, 2014 5:13 pm
- Calculate the coordinates of C & D
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- Let a,b,c be real positive numbers and abc=1
by Math Tutor » Tue Oct 15, 2013 9:12 am - 5 Replies
- 3457 Views
- Last post by MM
Wed Oct 16, 2013 5:40 pm
- Let a,b,c be real positive numbers and abc=1
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- Prove for every x
by Math Tutor » Mon Sep 09, 2013 6:53 am - 2 Replies
- 1569 Views
- Last post by Math Tutor
Wed Sep 11, 2013 2:58 pm
- Prove for every x
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- Number and quadratic sequences
by Guest » Fri Jul 05, 2013 3:38 am - 1 Replies
- 1855 Views
- Last post by adamsmith
Mon Sep 02, 2013 3:07 am
- Number and quadratic sequences
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- Point inside a quadrilateral ABCD.
by Math Tutor » Tue Jul 16, 2013 8:28 am - 2 Replies
- 2697 Views
- Last post by Math Tutor
Fri Jul 19, 2013 9:43 am
- Point inside a quadrilateral ABCD.
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- Difficult equation
by Math Tutor » Fri Jun 07, 2013 2:57 am - 2 Replies
- 1542 Views
- Last post by Guest
Mon Jun 17, 2013 2:39 am
- Difficult equation
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- Discrete Mathematics
by filip_go » Thu May 02, 2013 9:00 am - 1 Replies
- 2026 Views
- Last post by Guest
Sun May 05, 2013 2:24 pm
- Discrete Mathematics
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- Solve and explain the math problem
by filip_go » Mon Apr 22, 2013 6:39 pm
- 3 Replies
- 1470 Views
- Last post by Guest
Sun Apr 28, 2013 4:26 am
- Solve and explain the math problem
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- Solve the equation in real numbers.
by Math Tutor » Sun Mar 03, 2013 11:23 pm - 1 Replies
- 1751 Views
- Last post by Guest
Mon Mar 04, 2013 9:37 am
- Solve the equation in real numbers.
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- Calculate the sum
by Math Tutor » Thu Feb 21, 2013 2:58 pm - 2 Replies
- 1591 Views
- Last post by Math Tutor
Fri Feb 22, 2013 1:34 pm
- Calculate the sum
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- If the roots of the equation are equal
by Math Tutor » Thu Jan 31, 2013 3:25 am - 1 Replies
- 1610 Views
- Last post by Guest
Thu Jan 31, 2013 9:33 pm
- If the roots of the equation are equal
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- Find the sum of the coefficients
by Math Tutor » Mon Jan 07, 2013 1:53 am - 1 Replies
- 1681 Views
- Last post by Guest
Fri Jan 11, 2013 2:45 pm
- Find the sum of the coefficients
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- Proove that there is a root between 1 and 2
by Guest » Fri Dec 14, 2012 3:45 am - 2 Replies
- 1730 Views
- Last post by Guest
Sat Dec 15, 2012 2:34 am
- Proove that there is a root between 1 and 2
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- Irrational Equation
by Math Tutor » Sun Nov 25, 2012 3:20 pm - 4 Replies
- 2137 Views
- Last post by Math Tutor
Tue Dec 11, 2012 5:20 am
- Irrational Equation
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- Sofia University Entrance Exam
by Math Tutor » Thu Jul 29, 2010 4:22 am - 1 Replies
- 2716 Views
- Last post by Guest
Mon Dec 10, 2012 6:30 pm
- Sofia University Entrance Exam
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- Trigonometric equation: sin(x)sin(4x) = 1
by Math Tutor » Mon Sep 03, 2012 1:19 am - 4 Replies
- 6205 Views
- Last post by MM
Tue Sep 25, 2012 5:32 pm
- Trigonometric equation: sin(x)sin(4x) = 1
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- Prove that the equation has no real solutions
by Math Tutor » Thu Jun 21, 2012 5:19 pm - 4 Replies
- 3390 Views
- Last post by Guest
Tue Aug 14, 2012 5:39 pm
- Prove that the equation has no real solutions
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- Simultaneous Equations x+y=5 x^x+y^x=31
by Math Tutor » Wed May 30, 2012 3:15 am - 4 Replies
- 3406 Views
- Last post by Guest
Fri Jun 15, 2012 3:04 pm
- Simultaneous Equations x+y=5 x^x+y^x=31
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- Solve this little mathematical game
by jupiter_one » Mon Apr 30, 2012 12:00 pm
- 0 Replies
- 2155 Views
- Last post by jupiter_one
Mon Apr 30, 2012 12:00 pm
- Solve this little mathematical game
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- If x, y, z are real numbers, Prove that y(z-x) < 4
by Math Tutor » Mon Dec 12, 2011 3:13 am - 13 Replies
- 2893 Views
- Last post by Guest
Sat Apr 28, 2012 6:04 am
- If x, y, z are real numbers, Prove that y(z-x) < 4
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- Solve the equation (x + a)^4 + (x + b)^4 = c
by Math Tutor » Sun Mar 25, 2012 2:04 pm - 1 Replies
- 1945 Views
- Last post by Guest
Wed Apr 18, 2012 3:01 pm
- Solve the equation (x + a)^4 + (x + b)^4 = c
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- Max of cosa + cosb + cosy+ cosa*cosb*cosy
by Math Tutor » Sun Feb 26, 2012 3:53 am - 8 Replies
- 4227 Views
- Last post by Guest
Fri Mar 09, 2012 4:03 am
- Max of cosa + cosb + cosy+ cosa*cosb*cosy
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- Integer solutions: 3*2^x + 1 = y^2
by Math Tutor » Sun Mar 04, 2012 11:09 am - 2 Replies
- 1871 Views
- Last post by Guest
Wed Mar 07, 2012 4:25 am
- Integer solutions: 3*2^x + 1 = y^2
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- Arithmetic and geometric progression
by Math Tutor » Mon Jan 30, 2012 12:34 pm - 6 Replies
- 2725 Views
- Last post by Guest
Tue Feb 21, 2012 3:11 pm
- Arithmetic and geometric progression
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- Solve the system in natural numbers.
by Math Tutor » Thu Dec 29, 2011 8:42 am - 4 Replies
- 1876 Views
- Last post by Guest
Thu Jan 26, 2012 4:45 am
- Solve the system in natural numbers.
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- Solve the trigonometric equation sin^17 + cos^16 = 1
by Math Tutor » Mon Nov 21, 2011 7:58 am - 8 Replies
- 2636 Views
- Last post by Guest
Fri Dec 30, 2011 8:46 am
- Solve the trigonometric equation sin^17 + cos^16 = 1
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- Prove area equation
by Math Tutor » Mon Dec 05, 2011 6:25 am - 6 Replies
- 2202 Views
- Last post by Guest
Tue Dec 06, 2011 8:00 am
- Prove area equation
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- Prove that 1/2 * 3/4 ***99/100 > 1/15
by Math Tutor » Mon Nov 28, 2011 11:35 am - 2 Replies
- 2704 Views
- Last post by Guest
Mon Nov 28, 2011 4:13 pm
- Prove that 1/2 * 3/4 ***99/100 > 1/15
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- Find the exact value of the logarithmic expession
by Math Tutor » Thu Nov 10, 2011 7:56 am - 7 Replies
- 2128 Views
- Last post by Guest
Fri Nov 25, 2011 6:27 pm
- Find the exact value of the logarithmic expession
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- Prove the inequality
by Math Tutor » Thu Nov 17, 2011 4:19 pm - 14 Replies
- 3051 Views
- Last post by Guest
Sat Nov 19, 2011 2:41 pm
- Prove the inequality
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- Solve the equation x*x*x....=25
by Math Tutor » Tue Nov 15, 2011 3:36 pm - 3 Replies
- 1649 Views
- Last post by Guest
Thu Nov 17, 2011 12:53 pm
- Solve the equation x*x*x....=25
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- Find the values of m for which the equation has 2 roots
by Math Tutor » Wed Nov 02, 2011 1:00 pm - 5 Replies
- 2035 Views
- Last post by Guest
Tue Nov 15, 2011 1:44 pm
- Find the values of m for which the equation has 2 roots
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- System ot 2 equations
by Math Tutor » Tue Sep 13, 2011 4:28 am - 3 Replies
- 1828 Views
- Last post by Guest
Sun Oct 02, 2011 11:57 am
- System ot 2 equations
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- Divisible by 7 numbers between 100 and 6548
by nisarg » Tue Aug 23, 2011 9:45 pm - 1 Replies
- 1549 Views
- Last post by Guest
Fri Aug 26, 2011 6:35 pm
- Divisible by 7 numbers between 100 and 6548
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- Equation: 4^x + 7^x = 11^x
by Math Tutor » Fri Jun 10, 2011 1:09 pm - 2 Replies
- 1523 Views
- Last post by Guest
Mon Aug 08, 2011 10:33 am
- Equation: 4^x + 7^x = 11^x
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- Find the domain of 1/(2^x + 3^x - 5^x)
by Math Tutor » Sat Apr 02, 2011 2:04 am - 12 Replies
- 3222 Views
- Last post by shemet
Sun Jun 19, 2011 3:46 pm
- Find the domain of 1/(2^x + 3^x - 5^x)
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- Simplify the trigonometric expression
by Math Tutor » Fri Jun 17, 2011 10:13 am - 0 Replies
- 1424 Views
- Last post by Math Tutor
Fri Jun 17, 2011 10:13 am
- Simplify the trigonometric expression
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- Find the sum of 1 + 11 + 111 + 1111 + ...
by Math Tutor » Mon Jan 17, 2011 6:21 am - 6 Replies
- 26134 Views
- Last post by Math Tutor
Mon Mar 28, 2011 2:40 pm
- Find the sum of 1 + 11 + 111 + 1111 + ...
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- Problem 5 - Solve the inequality
by Math Tutor » Tue Nov 24, 2009 7:34 am - 7 Replies
- 5378 Views
- Last post by ahmed bakoush
Sat Oct 16, 2010 7:41 am
- Problem 5 - Solve the inequality
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- Problem of the week 6 - square root
by Math Tutor » Tue Mar 09, 2010 8:04 am - 2 Replies
- 2608 Views
- Last post by Math Tutor
Tue Jun 08, 2010 11:43 am
- Problem of the week 6 - square root
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- Problem of the week 3
by Math Tutor » Sat May 30, 2009 2:17 am - 1 Replies
- 5054 Views
- Last post by martin123456
Wed Nov 18, 2009 8:48 am
- Problem of the week 3
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- Problem of the week 3
by Math Tutor » Mon Jun 02, 2008 10:18 am - 3 Replies
- 3442 Views
- Last post by dduclam
Sat Jun 21, 2008 3:59 am
- Problem of the week 3
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- Problem of the week 4
by Math Tutor » Fri Jun 13, 2008 2:24 am - 1 Replies
- 3859 Views
- Last post by Math Tutor
Sat Jun 14, 2008 3:11 pm
- Problem of the week 4
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- Problem of the week 2 -
by Math Tutor » Sun May 04, 2008 1:28 pm - 3 Replies
- 2989 Views
- Last post by bigmamma
Sat May 31, 2008 6:50 am
- Problem of the week 2 -
161 topics • Page 3 of 4
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