CUET Preparation Today
If sinx = cos(30°+2x) find the value of sin3x. |
1 0 \(\frac{\sqrt {3}}{5}\) \(\frac{\sqrt {3}}{2}\) |
\(\frac{\sqrt {3}}{2}\) |
If sinx = cos(30°+2x) (x+30°+2x)=90° 3x = 60° x=20° Now, sin3x=sin3×20° = sin60° =\(\frac{\sqrt {3}}{2}\) |
