Let, a, b and c be three non-zero vectors such that no two of them are collinear and if θ is the angle between vectors b and c, then a value of sin θ is
If the vectors AB = 3î + 4k̂ and AC = 5î - 2ĵ + 4k̂ are the sides of a Δ ABC, then the length of the median through A is
√18
√72
√33
√45
Let be two unit vectors. If the vectors and are perpendicular to each other, then the angle between is
π/6
π/2
π/3
π/3
Let ABCD be a parallelogram such that and ∠BAD be an acute angle. If is the vector that coincides with the altitude directed from the vertex B the side AD, then is given byLet ABCD be a parallelogram such that AB = q,AD = p and ∠BAD be an acute angle. If r is the vector that coincides with the altitude directed from the vertex B to the side AD, then r is given by (1)
The vector are not perpendicular and are two vectors satisfying: The vector is equal to
The circle x2+ y2 = 4x + 8y + 5 intersects the line 3x – 4y = m at two distinct points if
-85 < m < -35
-35 < m < 15
15 < m < 65
15 < m < 65
If the vectors are mutually orthogonal, then (λ,μ) is equal to
(-3,2)
(2,-3)
(-2,3)
(-2,3)