Guest

If a and b are unit vectors and θ is the angle between them, then prove that cos θ/2 = ½ |a+b|

If a and b are unit vectors and θ is the angle between them, then prove that
cos θ/2 = ½ |a+b|

Grade:12

2 Answers

Saurabh Kumar
askIITians Faculty 2406 Points
7 years ago
In this problem, it is given that the magnitude of unit vectors are unity.
Calculate the resultant of tese given vectors, as R = a + b
Find its magnitude and calculate mathematically...You will get the required result..........................................
Good Luck......................
Saurabh Kumar
askIITians Faculty 2406 Points
7 years ago

In this problem, it is given that the magnitude of unit vectors are unity. Calculate the resultant of tese given vectors, as R = a + b Find its magnitude and calculate mathematically...You will get the required result.......................................... Good Luck......................

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free