3-d

Question: The co-ordinates of a point P are (3, 12, 4) with respect to origin O, then the direction cosines of $OP$are

1) 3, 12, 4

2) $\frac{1}{4},\frac{1}{3},\frac{1}{2}$

3) $\frac{3}{\sqrt{13}},\frac{1}{\sqrt{13}},\frac{2}{\sqrt{13}}$

4) $\frac{3}{13},\frac{12}{13},\frac{4}{13}$

Solution:

Explanation: No Explanation

System of co-ordinates Direction cosines and direction ratios Projection

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)