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

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If sin Θ + cosec Θ = 2, then the value of sin9 Θ + cosec9 Θ is :

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The value of (sin2 25° + sin2 65°)

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If sec Θ + tan Θ = 2 + √5, then the value of sin Θ + cos Θ is :

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