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If (x)/( cos theta ) = (y) /( cos (theta...

If `(x)/( cos theta ) = (y) /( cos (theta - 2pi//3))=(z)/( cos ( theta + 2pi//3))`, then ` x+y+z=`

A

1

B

0

C

`-1`

D

2

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The correct Answer is:
B
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