2tansquare45+cos square30-sin square60
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tan 45 = 1 and cos 30= √3/2 and sin 60 = √3/2
Now, 2×(1)^2 + (√3/2)^2 - (√3/2)^2 = 2 + 3/4 - 3/4 = 2
Now, 2×(1)^2 + (√3/2)^2 - (√3/2)^2 = 2 + 3/4 - 3/4 = 2
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