Evaluate: cos 15^ 0 & sin 15^ 0 sin 75^ 0 & cos 75^ 0 . - Vidyadip

Question

Evaluate:

$ \begin{vmatrix} \text{cos 15}^{0}& \text{sin 15}^{0} \\ \text{sin 75}^{0} & \text{cos 75}^{0} \\ \end{vmatrix}$.

✓

Answer

Zero.

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