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Given that vecP+vecQ = vecP-vecQ. This ...

Given that `vecP+vecQ = vecP-vecQ`. This can be true when :

A

`vecP = vecQ`

B

`vecQ= vec0 `

C

Neither `vecP` nor `vecQ` is a null vector

D

`vecP` is perpendicular to `vecQ`

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ALLEN-BASIC MATHEMATICS USED IN PHYSICS &VECTORS -ADDITON & SUBTRACTION, MULTIPLICATION & DIVISION OF A VECTOR BY A SCALAR
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