2tan square45 - cos square30 - sin square60
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rohit255:
wrong
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Tan 45° = 1, cos 30° = √3/2 , sin 60° = √3/2.
2×1 - (√3/2)^2 - (√3/2)^2 = 1/2.
2×1 - (√3/2)^2 - (√3/2)^2 = 1/2.
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