Math, asked by vilas2195, 9 months ago

SinA by 1 ➕ cosA ➕ sinA by 1 ➖ cosA

Answers

Answered by sandy1816
1

Step-by-step explanation:

sinA/1+cosA + sinA/1-cosA

=sinA[1/1+cosA+1/1-cosA]

=sinA[1-cosA+1+cosA/1-cos²A]

=sinA[2/sin²A]

=2/sinA

=2cosecA

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