Online Math Lessons
What is new:
Is it possible to find a natural number
so that
where
is the sum of the digits of
.
Problem of the Week
Problem of the Week
The Latest Topics From the Math Forum
Can you solve this inequalitie to me?(Gilmar)
Solve in R: x4 - 10x2 + 9 0 My e-mail is : profgilmardf@gmail.com
Solve in R: x4 - 10x2 + 9 0 My e-mail is : profgilmardf@gmail.com
Problem of the week 2 -(teacher)
Is it possible to find a natural number so that where is the sum of the digits of .
Is it possible to find a natural number so that where is the sum of the digits of .
many methods(dduclam)
Solve the following problem by many methods ;) Let a triangle ABC while AM,AN are bisectors. Prove that AM=AN <=> isosceles triangle.
Solve the following problem by many methods ;) Let a triangle ABC while AM,AN are bisectors. Prove that AM=AN <=> isosceles triangle.
Nice_AM-GM(dduclam)
Let such that . Prove that dduclam
Let such that . Prove that dduclam
Could someone help me work out the first derivative(rfk)
This one has me stumped I need to find the first derivative of the following formula: 0.8 * ((100-0.05x)-1/) + 0.2 * ((100+0.2x)-1/) I don't even know where to start. If some one could show me a wor
This one has me stumped I need to find the first derivative of the following formula: 0.8 * ((100-0.05x)-1/) + 0.2 * ((100+0.2x)-1/) I don't even know where to start. If some one could show me a wor
The Latest Posts From the Math Forum
Equation :)(dduclam)
Find all positive roots of the equation:
x = lg(9x + 1) (1)
PS: lg = log10
(1) <=>
Using Bernoulli inequality : (Equality holds for a=0 or k=0 or k=1)
we have
Equality holds for or ...
Find the area of a triangle with sides 3 cm, 4 cm and 5 cm(dduclam)
Find the area of a triangle with sides 3 cm, 4 cm and 5 cm.
This triangle is a right-angled triangle,because
Area of the triangle :) ...
A problem with complex numbers(dduclam)
What's the requests of problem? ...
sin cos(dduclam)
Why sin^2 + cos^2 = 1 ?
Because Pitago theorem show that :D ()
Nother value of ,using trigonometry circle ! ...
Factoring fractions to solve for X(dduclam)
Is it clear now?
:) ...
Mathematics News
Computer News
Math Questions
- 1 Why is math important?
And is it really important?
- 2 Are you interested in math?
Or you just want to graduate and nothing to remember?
- 3 What IQ tests shows?
Can mathematicans make them better?
- 4 Are people interested in maths?
- 5 Does the interest to mathematics die at school?
- 6 What about math education in your country.
- 7 What is the descision of the math parametric equation |x - a| = 5 ?
a is a parameter.
- 8 What is the graph of the function: f(x) = ax + b.
How the graph changes according to the parameters a and b.
- 9 What is a derivative of a function?
- 10 What is a matrix determinant. Is it a math function?











