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7cos2Q+3sin2Q=4
4sin2Q+3sin2Q+3cos2Q=4
3sin2Q+3cos2Q=4-4cos2Q
3(sin2Q+cos2Q)=4(1-cos2Q)
3×1=4×sin2Q
3/4=sin2Q
sinQ=under root 3/2
sinQ=sin60
Q=60
cot 60 =1/under root 3
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4sin2Q+3sin2Q+3cos2Q=4
3sin2Q+3cos2Q=4-4cos2Q
3(sin2Q+cos2Q)=4(1-cos2Q)
3×1=4×sin2Q
3/4=sin2Q
sinQ=under root 3/2
sinQ=sin60
Q=60
cot 60 =1/under root 3
if this question helps you please mark it as brainliest
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