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Find value of 3 tan^230° + 4/3sin^260° – 1/2cosec^230° – 1/3cos^2 45°

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Find value of 3 tan230° + 4/3sin260° – 1/2cosec230° – 1/3cos2 45° 

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= 1/3 + 1 - 2 - 1/6 = (2 + 6 - 12 - 1)/6 = - 5/6

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