If a, b and c are three non-coplanar vectors and p, q and r are vectors defined by , then the value of (a + b) . p + (b + c) . q + (c + a) . r is equal to
0
1
2
3
is equal to
D.
If i + j - k and 2i - 3j + k are adjacent sides of a parallelogram, then the lengths of its diagonals are
If the volume of the parallelepiped formed by three non-coplanar vectors a, b and c is 4 cu units, then [a x b b x c c x a] is equal to
64
16
4
8
Solution of edy/dx = x when x = 1 and y = 0 is
y = x(log(x - 1) + 4
y = x(log(x) - 1) + 3
y = x(log(x) + 1) + 1
y = x(log(x) - 1) + 1