Tan 2 A -sin 2 A -tan 2 Asin A 2

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Range of Trigonometric Ratios from 0 to 90 Degrees

tan 2 A -sin ...

Question

tan²A-sin²A=tan²AsinA²

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\frac{{cos}^{2} A + {tan}^{2} A - 1}{{sin}^{2} A} = {tan}^{2} A .

How many of below given statements are correct?

1. sin2A = 2sinA.cosA

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