If cot theta =15/8then evaluate 2+sin. theta (1-sin theta)/(1+cos theta) (2-2 cos theta)
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•cot theta=15/8
•sin theta=8/17
•cos theta=15/17
•2+8/17 (1-8/17)/(1+15/17)(2-2×15/17)
•(42/17)(9/17)/(32/17)(4/17)
•42×19/(1/32)(1/4)
3 (approx)------->exact value 2.9
•sin theta=8/17
•cos theta=15/17
•2+8/17 (1-8/17)/(1+15/17)(2-2×15/17)
•(42/17)(9/17)/(32/17)(4/17)
•42×19/(1/32)(1/4)
3 (approx)------->exact value 2.9
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