0

Guest

Courses New

If |a+b|=|a| then find angle between |2a+b| and |b|.

If |a+b|=|a| then find angle between |2a+b| and |b|.
 

Grade:9

1 Answers

Aditya Gupta
2081 Points
5 years ago
|a+b|=|a|
square both sides,
a^2+b^2+2a.b=a^2
or b.(b+2a)=0
here a.b means the dot product.
so the angle between b and 2a+b is pi/2.

Think You Can Provide A Better Answer ?

Other Related Questions on Vectors

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More