Math, asked by adnanhussain1728, 6 months ago

Find the product : (1_Costa) (1+cosa

Answers

Answered by Aadarshini6A1
2

Explanation:

At first multiply and divide this with (1-cos A)

1−cosA1+cosA⋅1−cosA1−cosA

=(1−cosA)21−cos2A

=(1−cosA)2sin2A

=(1sinA−cosAsinA)2

=(cosecA−cotA)2

Step-by-step explanation:

It is (cosecA−cotA)2

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