1.
2.
3.
4. If a line makes angles 90°.60°and θ with x, y and z-axis repectively, where θ is acute, then find θ.
5. Write the position vector of the mid-point of vector joining the points P(2,3,4) and Q(4,1,–2).
1.
2. Write the direction ratios of the following line:
3.
4.
5. and
are two vectors such that
then prove that vector
is perpendicular to vector
.
6. If and
then find the projection of
and
.