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Someone can give correct answer |
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Answer» TAN 45 = 1 COT 45 = 1 cos 60 = 1/2 sec 60 = 2 ==> 4 cot^2 45 - sec^2 60 ==> 4 × (1^2) - (2^2) ==> 4 - 4 ==> 0 |
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