Question

(sinA/1-cosA)+(sinA/1+cosA) =4 find the value of A.​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

(sinA/1-cosA)+(sinA/1+cosA) =4

= {sinA(1+cosA)/(1-cosA)(1+cosA)} +

{sinA(1-cosA)/(1-cosA)(1+cosA)} = 4

{(1+cosA)/sinA} + {(1-cosA)/sinA} = 4

2/sinA = 4

sinA = 1/2

A = 30°