1.

If a and b are two non-zero vectors, then the component of b along a is [MP PET 1991]

A.             \[\frac{(\mathbf{a}\,.\,\mathbf{b})\,\mathbf{a}}{\mathbf{b}\,.\,\mathbf{b}}\]
B.             \[\frac{(\mathbf{a}\,.\,\mathbf{b})\,\mathbf{b}}{\mathbf{a}\,.\,\mathbf{a}}\]
C.             \[\frac{(\mathbf{a}\,.\,\mathbf{b})\,\mathbf{b}}{\mathbf{a}\,.\,\mathbf{b}}\]
D.             \[\frac{(\mathbf{a}\,.\,\mathbf{b})\,\mathbf{a}}{\mathbf{a}\,.\,\mathbf{a}}\]
Answer» E.


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