Question

I’m not sure how to use integration to solve this question (4)

Answer 1

Hello,

`Area= (16)/(3)=2*( k*√(k)- \int\limits^(√(k))_(0) {x^2} \, dx )\\\\ (8)/(3)=k ^(3)/(2)- (1)/(3)* [x^3]^(√(^k))_0\\\\ 2* k ^(3)/(2)=8\\\\ k = \sqrt[3]{16}\\`