If \[\mathbf{a}=2\mathbf{i}+5\mathbf{j}\] and \[\mathbf{b}=2\mathbf{i}-\mathbf{j},\] then the unit vector along \[y=0\] will be [RPET 1985, 95]

\[\frac{\mathbf{i}-\mathbf{j}}{\sqrt{2}}\]

\[\frac{\mathbf{i}+\mathbf{j}}{\sqrt{2}}\]

If \[\mathbf{a}=2\mathbf{i}+5\mathbf{j}\] and \[\mathbf{b}=2\mathbf{i}

1.	If \[\mathbf{a}=2\mathbf{i}+5\mathbf{j}\] and \[\mathbf{b}=2\mathbf{i}-\mathbf{j},\] then the unit vector along \[y=0\] will be [RPET 1985, 95]
A.	\[\frac{\mathbf{i}-\mathbf{j}}{\sqrt{2}}\]
B.	\[ap+bq+cr=0\]
C.	\[{{90}^{o}}\]
D.	\[\frac{\mathbf{i}+\mathbf{j}}{\sqrt{2}}\]
Answer» E.

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If \[\mathbf{a}=2\mathbf{i}+5\mathbf{j}\] and \[\mathbf{b}=2\mathbf{i}-\mathbf{j},\] then the unit vector along \[y=0\] will be [RPET 1985, 95]

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