If 15cot theta = 8 evaluate
(1+sin theta)(1-sin theta)/(1+cos theta)(1-cos theta)
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https://www.meritnation.com/ask-answer/question/if-cot-theta-15-8-evaluate-4cottheta-5sectheta-8cos/introduction-to-trigonometry/9676481
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https://www.meritnation.com/ask-answer/question/if-cot-theta-15-8-evaluate-4cottheta-5sectheta-8cos/introduction-to-trigonometry/9676481
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