if tanA.tanB is equal root a-b/a+b than prove that (1-cos2A)(1-cos2B) is equal a2-b2

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Saurabh Koranglekar · Answer

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if tanA.tanB is equal root a-b/a+b than prove that (1-cos2A)(1-cos2B) is equal a2-b2

if tanA.tanB is equal root a-b/a+b than prove that (1-cos2A)(1-cos2B) is equal a2-b2

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if tanA.tanB is equal root a-b/a+b than prove that (1-cos2A)(1-cos2B) is equal a2-b2

if tanA.tanB is equal root a-b/a+b than prove that (1-cos2A)(1-cos2B) is equal a2-b2

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