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Ex 8.4, 5 - Chapter 8 Class 10 Introduction to Trignometry - Part 8

Ex 8.4, 5 - Chapter 8 Class 10 Introduction to Trignometry - Part 9

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Ex 8.4, 5 Prove the following identities, where the angles involved are acute angles for which the expressions are defined. ("1+sec" A)/"sec A" ="sin2 A" /"1 cos A" "[Hint : Simplify LHS and RHS separately]" Hence L.H.S = R.H.S Hence proved

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