Question

(1+cosA)(1-cosA)(1+cot²A)=1
​

Answer 1

Answer:

PLEASE MARK ME AS BRAINLIEST

Answer 2

Answer:

$(1 - \cos {}^{2} (a) )(1 + \cos {}^{2} (a) \div \sin {}^{2} (a) )$

sin²A x ( sin²A + cos²A / sin² A)

sin² A + cos² A = 1