Math, asked by dakshitha41, 11 months ago

SinA/1+cosA + 1+CosA/SinA = 4

Answers

Answered by sandy1816

1

Step-by-step explanation:

sinA/1+cosA + 1+cosA/sinA=4

sin²A+(1+cosA)²/sinA(1+cosA)=4

sin²A+1+cos²A+2cosA/sinA(1+cosA)=4

2+2cosA/sinA(1+cosA)=4

2/sinA=4

2cosecA=4

cosecA=2

A=30°

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