Question

Find the derivative of:

y=x(x^2+1)^(1/2)

Answer 1

\[y=x \sqrt{x ^{2}+1}\]

Answer 2

(x^2 + 1)^1/2 + (x^2)(x^2+1)^(-1/2)

Answer 3

how did you get that

Answer 4

Product rule of derivative and chain rule