Mark against the correct answer in each of the following:

Question:

Mark against the correct answer in each of the following:

The direction cosines of the perpendicular from the origin to the plane $\overrightarrow{\mathrm{r}} \cdot(6 \hat{\mathrm{i}}-3 \hat{\mathrm{j}}+2 \hat{\mathrm{k}})+1=0$ are

A. $\frac{6}{7}, \frac{3}{7}, \frac{-2}{7}$

B. $\frac{6}{7}, \frac{-3}{7}, \frac{2}{7}$

C. $\frac{-6}{7}, \frac{3}{7}, \frac{2}{7}$

D. None of these

Solution:

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Sept. 14, 2023, 6:35 a.m.
Sumitra
March 11, 2023, 7:29 p.m.
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