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3sin30` + 4cos²45` - cot²30`/cos²30` + …

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3sin30` + 4cos²45` - cot²30`/cos²30` + sin²60`

    • Posted by Ritika Singh 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Student Pro 11 months ago

    3sin30=1/2*3=3/2 4cos^2 45=4(1/2)^2=4*1/2=4/2 cot^2 30=√3^2=3 cos^2 30 = √3/2^2=3/4 Sin2 60^= (√3/2)2=3/4 3(1/2)+4/2-3/3/4+3/4 [ by cutting 3 by 3cand 4by 4] 3/2+4/2-3[ now take the lcm of -3 multiply it by 2] = 3+4-6/2=7-6/2= 1/2 ans is 1/2

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