Question

If ( frac{d}{d x}left(frac{sec x cdot-1}{sec x+1}right) )
( =frac{d}{d x}left(frac{sec x-1}{sec x+1} times frac{sec x-1}{sec x-1}right) )
( =frac{d}{d x}left(frac{(sec x-1)^{2}}{tan ^{2} x}right) )
( =frac{d}{d x}(cos x-cos x)^{2} )
( =2 operatorname{cosec}(operatorname{cosec} x-cot x)^{2} )

# Differenciate the following beca-1 Secati

Solution