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| 1. |
If √3 SinA =cosA ,find the value of 3cos²A+2cosA/3cosA+2 |
| Answer» √3 sinA=cosAsinA/cosA=1/√3tanA=1/√3A= 30°So, 3cos^2A+2cosA/(3cosA+2)= cosA(3cosA+2)/(3cosA+2)=cosA=cos30°=√3 /2 | |