Question

Cosa×root1+cot^2a=root cosec^2 a-1

Answer 1

Answer:

The proof is as follows- To prove- √(1+cosA)/ √(1-cosA)=cosecA + cot A Proof- LHS- ... LHS =root(1+cosA)/root(1-cosA) ... How can we prove that cos^6A+sin^6A= (1+3cos^2 2A)/4? · इस पेज का अनुवाद करें