(i) cosecθ+cotθcosecθ−cotθ=(cosecθ+cotθ)2=1+2cot2θ+2cosecθcotθ
(ii) secθ+tanθsecθ−tanθ=(secθ+tanθ)2=1+2tan2θ+2secθtanθ
Prove that: 1secθ−1−1secθ+1=2cot2θ
The expression E=1cosecθ−cotθ−1sinθ is equal to which of the following expression?