4cot²60+sec²30-2sin²45/sin²60+cos²45
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[ 4(1/√3)² + (2/√3)² - 2 (1/√2)² ] / [ (√3/2)² +(1/√2)² ]
= [ (4/3) + (4/3) - 1 ] / [ (3/4) + (1/2) ]
= [5/3] / [5/4]
= 4/3
= [ (4/3) + (4/3) - 1 ] / [ (3/4) + (1/2) ]
= [5/3] / [5/4]
= 4/3
priyankaakshatha:
thank u very much
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