## Question

#### SIMILAR QUESTIONS

The values of ‘*a*’ for which the points *A*, *B*, *C* with position vectors respectively are the vertices of a right angled triangle with *C* = π/2 are

The vectors are the adjacent sides of a parallelogram. Then, the acute angle between its diagonals is

If are two vectors such that then angle between

The values of *x* for which the angle between the vectors is acute, and the angle between the vector and the axis of ordinates is obtuse, are

The value of *x* for which the angle between and is obtuse and the angle between and the *z*-axis is acute and less than π/6, are

If are two unit vectors such that , then the angle between , is

, then the angle between

If are unit vectors and θ is the acute angle between them, then is a unit vector for

is equal to