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Resultant of two vectors is of magnit...

Resultant of two vectors is of magnitude P. If `vecA and vecB` is reversed, then resultant is of magnitude Q. what is the value of `(P^2 + Q^2)` ?

A

`C^(2) + D^(2) = A^(2)+B^(2)`

B

`A^(2) + C^(2) =B^(2) +D^(2)`

C

`C^(2) + D^(2) =2(A^(2) + B^(2))`

D

`C^(2)-D^(2) =A^(2) +B^(2)`

Text Solution

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The correct Answer is:
C
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