Question

prove that
cot A - cos A/cot A+ cos A = cosec a-1 /cosec A+1

Answer 1

Answer:

$\frac{cotA - cosA}{cotA + cosA} \\ = \frac{ \frac{cosA}{sinA} - cosA }{ \frac{cosA}{sinA} + cosA} \\ = \frac{cosA( \frac{1}{sinA} - 1) }{cosA( \frac{1}{sinA} + 1)} \\ = \frac{cosecA - 1}{cosecA + 1}$

Answer 2

Answer:

this is correct..................