4/3 cot²30 + 3 sin²60 - 2 cosec²60 - 3/4 tan²30
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Step-by-step explanation:
4/3 cot²30 + 3 sin²60 - 2 cosec²60 - 3/4 tan²30
=4/3*(√3)²+3*(√3/2)²-2(2/√3)²-3/4(1/√3)²
=4/3*3+3*3/4-2*4/3-3/4*1/3
=10/3
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