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Which of the following is true about multiplication of a vector by a scalar.1) Scalar multiplication by a positive number other than 1 changes its magnitude but not direction.2) Scalar multiplication always lead to change in magnitude and direction. 3) Scalar multiplication by -1 will not change the magnitude of the vector but will change its direction. 4) Scalar multiplication by a negative number other than -1 will reverse its direction and change its magnitude as well. |
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Answer» Which of the following is true about multiplication of a vector by a scalar. 1) Scalar multiplication by a positive number other than 1 changes its magnitude but not direction. 2) Scalar multiplication always lead to change in magnitude and direction. 3) Scalar multiplication by -1 will not change the magnitude of the vector but will change its direction. 4) Scalar multiplication by a negative number other than -1 will reverse its direction and change its magnitude as well. |
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