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vec(P), vec(Q), vec(R), vec(S) are vecto...

`vec(P), vec(Q), vec(R), vec(S)` are vector of equal magnitude. If `vec(P) + vec(Q) -vec(R) = 0` angle between `vec(P)` and `vec(Q)` is `theta_(1)`. If `vec(P) + vec(Q) - vec(S) = 0` angle between `vec(P)` and `vec(S)` is `theta_(2)`. The ratio of `theta_(1)` to `theta_(2)` is

A

`1:2`

B

`2:1`

C

`1:1`

D

`1:sqrt(3)`

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The correct Answer is:
B
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AAKASH SERIES-MOTION IN A PLANE -Exercise -II
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