Mark the tick against the correct answer in the following:

Question:

Mark the tick against the correct answer in the following:

$\left|\begin{array}{ccc}\sin \alpha & \cos \alpha & \sin (\alpha+\delta) \\ \sin \beta & \cos \beta & \sin (\beta+\delta) \\ \sin \gamma & \cos \gamma & \sin (\gamma+\delta)\end{array}\right|=?$

A. 0

B. 1

C. $\sin (\alpha+\delta)+\sin (\beta+\delta)+\sin (\gamma+\delta)$

D. none of these

Solution:

 

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