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Consider three vectors veca, vecb and ve...

Consider three vectors `veca, vecb and vecc`. Vectors `veca and vecb` are unit vectors having an angle `theta` between them For vector veca,`|veca|^2=veca.veca` If `veca_|_vecb and veca_|_vecc then veca||vecbxxvecc` If `veca||vecb, then veca=tvecb` Now answer the following question: If `vecc` is a unit vector and equal to the sum of `veca and vecb` the magnitude of difference between `veca and vecb` is (A) 1 (B) `sqrt(2)` (C) `sqrt(3)` (D) `1/sqrt(2)`

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