Practicing Success
The value of $\left|\begin{array}{llr}\sin 15° & \cos 15° & 2 \sin 30° \\ \sin 30° & \cos 30° & \sin 45° \\ \cos 75° & \sin 75° & \sin 90°\end{array}\right|$ is: |
1 0 $\frac{1}{2}$ $\frac{\sqrt{3}}{2}$ |
0 |
The correct answer is Option (2) → 0 |