2 cos2 90 + 4 cos2 45 + tan2 60+ 3 cosec2 60 /(3 sec 60 - 7 +2 sec2 45 + 2 cosec 30)
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(3 sec 60 - 7 +2 sec2 45 + 2 cosec 30)
2 cos2 90 + 4 cos2 45 + tan2 60+ 3 cosec2 60 /(3 sec 60 - 7 +2 sec2 45 + 2 cosec 30)
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2×0+4×(1/√2)²+ (√3)²+3(2/√3)²/
3×2-7/2√2² + 2×2 ======= 4×1/2+3+3×4/3/6-7/2 + 4 ==== 2+3+4 /=6-7 +4== 9/3. ====3 answer is 3