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we rationalise the numerator
sin theta /1-cos theta×1-cos/1+cos
after using identity (a+b)(a-b)=a square b
after process you solve by yourself
thank you future airforce officer
sin theta /1-cos theta×1-cos/1+cos
after using identity (a+b)(a-b)=a square b
after process you solve by yourself
thank you future airforce officer
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