AP EAMCET · Maths · Trigonometric Ratios & Identities
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- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
Let fx=1+sec2xsin2x ⇒fx=1+sin2xcos2x ∵secx=1cosx ⇒fx=1+tan2x ∵tanx=sinxcosx ⇒fx=sec2x
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