vectors-m

Question: If the position vectors of the points A, B, C, D be $2\mathbf{i}+3\mathbf{j}+5\mathbf{k},$ $\mathbf{i}+2\mathbf{j}+3\mathbf{k},\,\,-5\mathbf{i}+4\mathbf{j}-2\mathbf{k}$ and $\mathbf{i}+10\mathbf{j}+10\mathbf{k}$ respectively, then



1) $\overrightarrow{AB}=\overrightarrow{CD}$
2) $\overrightarrow{AB}\,\,\,|\,\,|\,\,\,\overrightarrow{\,CD}$
3) $\overrightarrow{AB}\,\,\bot \,\,\overrightarrow{CD}$
4) None of these
Solution: Explanation: No Explanation
Modulus of vector Algebra of vectors

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