Math, asked by Sathyapriya1, 1 year ago

prove that: 2(cos^4 60 + sin^4 30) - (tan ^2 60 - cot^2 45) + sec^2 30 = 9/4

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Answered by Purbadri

6

Its one of the most important sum on Trigonometry Complementary Angles

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Answered by hanansmoky

2

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