If Formulae :• • • • • • Given,Dividing numerator and denominator by cosx,…………. …………. Differentiating above equation w.r.t. x , …………. …………. …………. Hence Proved.
Formulae :
•
Given,
Dividing numerator and denominator by cosx,
………….
Differentiating above equation w.r.t. x ,
Hence Proved.