Question

the angle between two equal vectors if the magnitude of their sum is twice the magnitude of either of the vecors​

Answer 1

Answer:

Here, ∣  

A

+  

B

∣=∣  

A

−  

B

∣

A  

2

+B  

2

+2  

A

.  

B

=A  

2

+B  

2

−2  

A

.  

B

 

4  

A

.  

B

=0

As dot products of two vectors is zero so the angle between them will be 90  

o

.

Explanation:

Answer 2

Answer:

The magnitude of the sum is twice the magnitude of either vectors