Question

10th-Maths-

Show that (1-cosA)^1/2/(1+cosA)^1/2  = cosecA+cotA  
        

Answer 1

$\sqrt{(1 - \cos(a)) \div (1 + \cos(a)) } \\ = \sqrt{ {(1 - cosa)}^{2} \div (1 + \cos(a) )(1 - \cos(a)) } \\ = (1 - cosa) \div \sin(a) \\ = coseca - cota$
here it is