If cot theta is equal to 7 upon 8 evaluate 1 + sin theta into 1 minus sin theta upon 1 + cos theta into 1 minus cos theta
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Answer is 49/64
The third side will be under root 113 and then you can find the value of cos and sin and then you can evaluate the following..... I am just giving hint!!
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by this method you can find the value, but I am not sure about my answer
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