If alpha, beta, gamma and delta be four ...

If `alpha, beta, gamma` and `delta` be four angles of a cyclic qardrilateral, then the value of : `cosalpha + cosbeta + cosgamma + cosdelta` is :

A

1

B

0

C

`-1`

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:

B

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