Q? If vector A= B+C and the magnitudes of vector A,B and C are 5,4 and3 units respectively.Find the angle between vectorA andC?

Asked by Anand Tiwari | 27th Jul, 2013, 09:51: AM

Expert Answer:

A= B+C
squaring both the sides
A2 =B2 +C2 +2BC
52 = 42 +32 +2BC
25 = 16 +9 +2BC
 
i.e ..2BC=0
i.e... BC=0
 

Answered by  | 27th Jul, 2013, 03:56: PM

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