Question

if( cosec A + cot A ) =m then prove that m^2-1/m^2+1​

Answer 1

Answer: Cos square X

m = ( (1+cos x)/sin x)

m= Cot x/2

m^2 = Cot^x/2

Use Componendo and dividendo

M^2-1/ m^2+1 = (Cot^2 x/2-1) /(Cot^2 x/2+1)

= Cos^2 x