Physics, asked by sushanthnaidu24, 1 year ago

Let a and b be two unit vectors and is the
angle between them. Then a+b is a unit vector​

Answers

Answered by swejalkasaudhan
1

Answer:

R^2=a^2 + b^2 +2abcosP

1^2=1^2+1^2+2cosP

1=2+2cosP

-1/2=cosP

P=120°

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