The angles which the vector $A =3 \hat{ i }+6 \hat{ j }+2 \hat{ k }$ makes with the coordinate axes are
- A$\cos ^{-1} \frac{3}{7}, \cos ^{-1} \frac{6}{7}$ and $\cos ^{-1} \frac{2}{7}$
- B$\cos ^{-1} \frac{4}{7}, \cos ^{-1} \frac{5}{7}$ and $\cos ^{-1} \frac{3}{7}$
- C$\cos ^{-1} \frac{3}{7}, \cos ^{-1} \frac{4}{7}$ and $\cos ^{-1} \frac{1}{7}$
- DNone of the above
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