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  3. Find the value of-tan(90-theta)cot theta- sec (90-theta)cosec theta + 3(cot^2 67- sec^2 63) / cot 26 cot 41 cot 45 cot 49 cot 64
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Find the value of-tan(90-theta)cot theta- sec (90-theta)cosec theta + 3(cot^2 67- sec^2 63) / cot 26 cot 41 cot 45 cot 49 cot 64

Answers (1)
D Deependra Verma

fraccotPhicotPhi - cscPhicscPhi +3(cot^2 67 - sec ^263)cot(90 - 64) cot(90 -49) cot 45 cot 49 cot 64

=fraccot^2Phi - csc^2Phi +3(cot^2 67 - sec ^263) an 64 an 49*1*cot 49 cot 64

=-1 +3(cot^2 67 - sec ^263) (ecause anTheta*cot heta=1;cot^2 heta-csc^2 heta=-1 )

=-1 +3(cot^2 67 - sec ^263)

                

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