Question

sec(tantheta) derivative of the function​

Answer 1

$y = sec(tan \theta) \\ \frac{dy}{d \theta} = sec(tan \theta)tan(tan \theta) \frac{d}{d \theta} tan \theta \\ \frac{dy}{d \theta} = sec(tan \theta)tan(tan \theta) {sec}^{2} \theta$