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The value of the determinant. |{:(1, a...

The value of the determinant.
`|{:(1, a, a^(2)),(cos(n-1)x, cos nx, cos(n+1)x),(sin(n-1)x, sin nx, sin(n+1)x):}|` is zero, if

A

`sin x =0`

B

`cos x =0`

C

`a=0`

D

`cos x = (1+a^(2))/(2a)`

Text Solution

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The correct Answer is:
A
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