Question

y=-1/√(x^2+1), then dy/dx=

Answer 1

use the chain rule

Answer 2

y = - 1/√(x^2+1) = - (x^2 + 1)^(-1/2)
now, u can integrate it by chain rule

Answer 3

Thanks! I got it now!

Answer 4

really, what ur answer :)

Answer 5

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

Answer 6

i got different

Answer 7

well with the chain rule I got
1/2(x^2+1)^(1/2)(2x)

then I simplified

Answer 8

in bracket, it should the power is 3/2 not 1/2

Answer 9

why?

Answer 10

i meant like this :