Question

d/dx sec square equal to

Answer 1

d/dxsec²x= tanx

I hope you got your answer

Answer 2

$\frac{d}{dx} ( {secx}^{2} ) = \\ first \: derivate \: the \: power \: so \: we \: get \: \\ 2secx \frac{d}{dx} (secx) \\ again \: derviate \: secx \: so \: that \: \\ 2secx.secx.tanx$