A straight line is inclined to the axes of x and z at angels 45° and 60° respectively, then the inclination of the line to the y-axis is
Answer & explanation
Correct answer: option 3
A straight line is inclined to the axes of x and z at an angle 45° and 60°
l2 + m2 + n2 = 1
$\Rightarrow m^2=\frac{1}{4}$
$\Rightarrow m=\frac{1}{2}$
⇒ angle made by 60°