if √3sinA = cosA then find value of 3cos^2A + 2cosA/3cosA + 2
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√3sinA=cosA
tanA=1/√3
A=30°
Now we need to find
=3cos²A+2cosA/3cosA+2
=cosA(3cosA+2)/3cosA+2
=cosA
=cos30
=√3/2
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