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34. Prove that: secsec2tantan2 e,CBSE 2015]

Answer»

sec⁴theta-sec²thetasec²theta(sec²theta - 1) = (1+tan²theta){(1+tan²theta) - 1}= (1+tan²theta)(tan²theta) = tan²theta + tan⁴theta⁴sec⁴theta - sec²theta = tan²theta + tan⁴thetaproved.



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