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The value of 152(Sin 30° + 2Cos2 45° + 3Sin 30° + 4Cos2 45° +…….+17Sin 30° + 18Cos2 45°) is

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The maximum value of Sin4θ + Cos4θ is ?

If cos4 Θ − sin4 Θ = 2/3, then the value of 1 − 2 sin2 Θ is

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Find the value of Tan4° Tan43° Tan47° Tan86° ?

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