(1-costita)(1+costheta)(1+cotsquaretheta)
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1
since (a-b)(a+b) = a² - b²
⇒(1 - cos²α)(1 + cot²α)
⇒ (sin²α)(cosec²α)
⇒ (sin²α)(1/cosec²α)
⇒ 1 is the answer
⇒(1 - cos²α)(1 + cot²α)
⇒ (sin²α)(cosec²α)
⇒ (sin²α)(1/cosec²α)
⇒ 1 is the answer
harishvermabaq:
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Answered by
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use the identities. a²-b²=( a+b)(a-b).
sin²theta + cos²theta
answer is 1
sin²theta + cos²theta
answer is 1
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