Q. 10

# Mark (√) against the correct answer in each of the following:

If and then the angle between and is

A.

B.

C.

D.

Answer :

Given - and

To find – Angle between and .

Formula to be used - where and are two vectors

Tip – Magnitude of a vector is given by

Here,

and

Hence, i.e.

Rate this question :

The angle between two vectors and with magnitudes and 4, respectively, and is

Mathematics - ExemplarTrue and False

If , then the vectors and are orthogonal.

Mathematics - ExemplarFill in the blanks

The vectors are the adjacent sides of a parallelogram. The acute angel between its diagonals is ____________.

Mathematics - ExemplarFill in the blanks

If is any non-zero vector, then equals ______.

Mathematics - ExemplarTrue and False

If and are adjacent sides of a rhombus, then .

Mathematics - ExemplarTrue and False

The formula is valid for non-zero vectors and .

Mathematics - ExemplarFill in the blanks

The vector bisects the angle between the non-collinear vectors and if ________

Mathematics - ExemplarIf and are two vectors such that then prove that vector is perpendicular to vector

Mathematics - Board PapersMark the correct alternative in each of the following:

If θ is an acute angle and the vector is perpendicular to the vector then θ =

RD Sharma - Volume 2

Mark the correct alternative in each of the following:

is equal to

RD Sharma - Volume 2