Student Comments

kspcr111 | Student

`d/(dx) (sec(x))`

`=d/(dx) (1/cos(x))`

`= ((d/(dx) cos x)*1 - cosx * d/dx(1))/(cos^2(x))`

`= sinx/cos^2(x)`

`= sec(x) tan(x)`

Student Comments

kspcr111 | Student

`d/(dx) (sec(x))`

`=d/(dx) (1/cos(x))`

`= ((d/(dx) cos x)*1 - cosx * d/dx(1))/(cos^2(x))`

`= sinx/cos^2(x)`

`= sec(x) tan(x)`