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Let us define the length of a vector a...

Let us define the length of a vector `a hat i+b hat j+c hat k a s|a|+|b|+|c|dot` This definition coincides with the usual definition of length of a vector `a hat i+b hat j+c hat k` is and only if (a) `a=b=c=0` (b) any two of `a ,b ,a n dc` are zero (c) any one of `a ,b ,a n dc` is zero (d) `a+b+c=0`

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For given vector, vec a = 2 hat i j +2 hat k and vec b = - hat i + hat j - hat k , find the unit vector in the direction of the vector vec a + vec b .

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CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
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  3. Let us define the length of a vector a hat i+b hat j+c hat k a s|a|+...

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