Prove that sin^2 π/6 + cos^2 π/3 – tan^2 π/4 = -1/2

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asked Aug 9, 2017 in Mathematics by sforrest072 (157,439 points) 61 410 943

Prove that sin2 π/6 + cos2 π/3 – tan2 π/4 = -1/2

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answered Aug 10, 2017 by Rohit Singh (61,782 points) 35 133 357
selected Aug 10, 2017 by sforrest072
 
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