4/3 cot²30 + 3 sin²60 - 2 cosec²60 - 3/4 tan²30
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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
=4+9/4-8/3-1/4
= 4+2 - 8/3
(18-8)/3
= 10/3.
I think it is correct
= 4/3×3 + 3×3/4 - 2× 4/3 - 3/4 × 1/3
=4+9/4-8/3-1/4
= 4+2 - 8/3
(18-8)/3
= 10/3.
I think it is correct
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