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What is the angle between (A vector+B vector) and (A vector-B vector)?

What is the angle between (A vector+B vector) and (A vector-B vector)?

Grade:12th pass

2 Answers

Arun
25750 Points
6 years ago
Dear Ishan
 
It depends on the values of A and B vectors and angle between them. 
for example , when A = B and angle between A and B  is 90 ° 
then angle between vectors A+B and A -B is 90°.
 
Regards
Arun (askIITians forum expert)
Ishan karki
32 Points
6 years ago
Dear Arun,
options abailable are 
a)0 degree
b)90 degree
c)180 degree
​d) Between 0 degree to 180 degree
 
And correct answer is option d.
Explain me how? 
 
Best regards,
Ishan

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