Question

1. Fill in the blanks:
1x10-10
(a) If the position vector of a point (-4,-3) be
(b) The position vector of the mid-point of the
vector joining the points P(21 – 3j + 4k) and
Q[4i + j - 2k) is
(c) If the height of 5 persons are 144 cm,
152 cm, 150 cm, 158 em and 155 em respec-
tively then the mean height is​

Answer 1

Answer:

000000000000000000000000