NULL VECTOR::::
null vector is avector of zero magnitude and arbitrary direction the sum of a vector and its negative vector is a null vector...
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It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.
prrpendicular projections of a vector called component of vector
the opposite to vector addition is vector subtraction.
The unit vector is a vector whose magnitude is 1.
If we reject the null hypothesis, we conclude that the alternative hypothesis which is the alpha risk is true. The null hypothesis is used in statistics.