Sintheta/ 1+costheta+sintheta/1-costheta

1.	Sintheta/ 1+costheta+sintheta/1-costheta
Answer» Sin/1+cos +sin/1-cos=sin(1-cos)+sin(1+cos)/(1+cos)(1-cos)=sin-sin.cos+sin+sin.cos/1-cos²=2sin/sin²=2/sin=2cosecPlease inpu theta in all

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