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If cottheta=7/8, evaluate: (i) ((1+si...

If `cottheta=7/8`, evaluate:
(i) `((1+sintheta)(1-sintheta))/((1+costheta)(1-costheta))`
(ii) `cot^2theta`

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To solve the given problem step by step, we will evaluate both parts as follows: ### Given: \[ \cot \theta = \frac{7}{8} \] ### Part (i): ...
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