Question

1/secx in derivative?

Answer 1

`-sin(x)`

Explanation:

Since `sec(x)` means `1/cos(x)`, then `1/sec(x)` is `cos(x)` itself. And thus, its derivative is `-sin(x)`

Answer 2

`-sinx`

Explanation:

`"assuming you require the derivative of "1/secx`

`"using the "color(blue)"trigonometric identity"`

`•color(white)(x)cosx=1/secx`

`rArrd/dx(cosx)=-sinxlarrcolor(blue)"standard derivative"`