Questions
 Evaluate:
 Find the values of a which satisfy the integral
Answers

 ∫ (x^{2 }+ 1) dx = 2a
a^{3}+ a – 0 =2a
3 1
a^{3}+ 3a= 6a
a^{3}= 3a
(a^{3 }– 3a) = 0
a(a^{2 }– 3) = 0
a = 0
or 3 = ± 1.732
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