Question

Sintheta/1 + costheta =

Answer 1

Answer:

sin A/1+cos A

=sin A(1-cos A)/(1+cos A)(1-cos A)

=sin A(1-cos A)/1-cos²A

=sin A(1-cos A)/sin²A

=1-cos A/sin A

=1/sin A-cos A/sin A

=cosec A-cot A

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hope it helps ^_^

Answer 2

Answer:

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