Question

Prove that (i) tan(90-A)/cosec 0 = cos A

Answer 1

Answer:

how i prove that because i am in 9th standard

Answer 2

Answer:

$\frac{ \tan(90 - a) }{cosec \: a} = \frac{ \cot(a) }{ \frac{1}{ \sin(a) } } \\ = \frac{ \cos(a) \times \sin(a) }{ \sin(a) } = \cos(a)$

please mark this as brainlist answer .I really need it