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Qn #579
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A man starts at the origin O and walks a distance of 3 units in the north- east direction and then walks a distance of 4 units in the north-west direction to reach the point P. then $\vec{OP}$ is equal to
A.
$$\frac{1}{\sqrt{2}} (-\hat{i}+\hat{j})$$
B.
$$\frac{1}{2} (\hat{i}+\hat{j})$$
C.
$$\frac{1}{\sqrt{2}} (\hat{i}-7\hat{j})$$
D.
$$\frac{1}{\sqrt{2}} (-\hat{i}+7\hat{j})$$
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