Question

differentiate 3x + square root x^2 -3

Answer 1

help

Answer 2

differentiate 3x first

Answer 3

so its 3

Answer 4

then use chauin rule
u=x^2 -3
d/du(sqrtu)=??

Answer 5

teach me how to do the chain rule pls?

Answer 6

well we are saying u = u=x^2 -3

then

d/du(sqrtu) we will take this derivative and plug back in u

we know the derivative of (sqrtu) is

1/2sqrtuor plugging back u

1/2sqrt(x2-3)

now taking d/dx(x^2-3)= 2x

we get 2x/2sqrt(x2-3)

the 2's cancel

we get

3 + x/sqrt(x2-3)

Answer 7

ah okay still digesting this.. thanks!!! thank you so much =)

Answer 8

ok good luck!!