quick question for inverse (1 Viewer)

[mecramarathon]

how do you differentiate cos<SUP>-1 2</SUP>√x i.e. inverse cos of 2 root x

cheers

 

[shaon0]

how do you differentiate cos<SUP>-1 2</SUP>√x i.e. inverse cos of 2 root x

cheers

Let u=2sqrt(x) and use chain rule.

 

[fullonoob]

d/dx arc cos (2rootx)
u = 2rootx
du = dx / rootx

d/dx arc cos (2rootx)
= - 1 / root(1 - 4x) . root x