If for two non-zero vectors a, b : ∣a+b∣=∣a−b∣ then angle between them is:a. 0b. 45c. 60d. 90

Step-by-step explanation:

Given two non zero vectors, .

Let the angle between the two vectors =

Given that:

Let us have a look at the formula for magnitude of addition of two vectors:

Where is the angle between the two vectors.

formula for magnitude of subtraction of two vectors:

As per the given condition:

Squaring both sides:

So, the angle between the two vectors is:

the answer is d. (1.2, -4.7) on edgn

hope this !

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value