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Rajan@2021
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Asked: 2021-04-09T16:34:40+05:30 In:

Prove that: tan²θ – 1/cos²θ = -1

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This question is from trigonometry topic trigonometric identities in which we have been asked to prove that tan²θ – 1/cos²θ = -1

RS Aggarwal, Class 10, chapter 13A,  question no 5(ii)

class 10 cbsers aggarwaltrigonometric identities
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