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  4. If O is the origin and O P=3 with direction ratios -1,2 and -2, then coordinates of P are

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Q. If $O$ is the origin and $O P=3$ with direction ratios $-1,2$ and $-2$, then coordinates of $P$ are

Three Dimensional Geometry

Solution:

Let the coordinate of $P$ be $\left(x_1, y_1, z_1\right)$
$\therefore$ Direction ratios of $O P$ are $\left(x_1-0, y_1-0, z_1-0\right)$
i.e., $\left(x_1, y_1, z_1\right)$.
Hence, coordinates of $P$ are $(-1,2,-2)$.