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solve cotA+cosecA-1 /cotA-cosecA+1 (a)cosA/1-sinA (b)cosA/1+sinA (c)1-sinA/cosA (d)sinA/1-cosA thanks

solve
 cotA+cosecA-1 /cotA-cosecA+1 
(a)cosA/1-sinA (b)cosA/1+sinA  (c)1-sinA/cosA (d)sinA/1-cosA 
 
 
thanks 

Grade:12

1 Answers

Vikas TU
14149 Points
7 years ago
Use
cosec ² A - cot ² A = 1 and substitute in the numerator and use identity
x²-y²= (x+y)(x-y)  and then solve it.

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