matematika



Find the sum of the coefficients

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Find the sum of the coefficients

Postby Math Tutor » Mon Jan 07, 2013 1:53 am

What is the sum of the coefficients?
(x^3 - 2x + 2)^{35}(x^2 - 5x + 3)^{18}


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Re: Find the sum of the coefficients

Postby Guest » Fri Jan 11, 2013 2:45 pm

Math Tutor wrote:What is the sum of the coefficients?
(x^3 - 2x + 2)^{35}(x^2 - 5x + 3)^{18}


This is equal to f(1)=(1-2+2)^{35}*(1-5+3)^{18}=1^{35}*(-1)^{18}=1
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