Find the coordinates of the foot of the perpendicular drawn from the point $P(0, 2, 3)$ to the line $\frac{x+3}{5} = \frac{y-1}{2} = \frac{z+4}{3}$. |
$(2, 3, -1)$ $(-3, 1, -4)$ $(5, 2, 3)$ $(0, 2, 3)$ |
$(2, 3, -1)$ |
The correct answer is Option (1) → $(2, 3, -1)$ ## Given point is $P(0, 2, 3)$ Given line is: $\frac{x+3}{5} = \frac{y-1}{2} = \frac{z+4}{3} = \lambda$ General point on the line is $[(5\lambda - 3), (2\lambda + 1), (3\lambda - 4)]$ Direction ratio of the perpendicular line $[(5\lambda - 3), (2\lambda - 1), (3\lambda - 7)]$ $∴5(5\lambda - 3) + 2(2\lambda - 1) + 3(3\lambda - 7) = 0$ $25\lambda - 15 + 4\lambda - 2 + 9\lambda - 21 = 0$ $38\lambda - 38 = 1$ $\lambda = 1$ $∴$ Foot of perpendicular line is $[(5-3), (2+1), (3-4)] = (2, 3, -1)$ |