Question

d/dx A(1+x^2)^1/2 where A is constant

Answer 1

\[d(a\sqrt{1+x^2})/dx=\frac{ax}{\sqrt{1+x^2}}\]Cch-chchainrule

Answer 2

ohh, so, i still need to use chain rule for this ? because i thought the constant can be consider as a number

Answer 3

wait

Answer 4

-_- now only i see this, hahaha, thanks for helping :D