The magnitude of vectros vec A, vec B` and vec C` are 12, 5 and 13 units respectively and ` vec A + vec B= vec C`, find the angle between ` vec A and vec B` .

The magnitude of vectros vec A, vec B` and vec C` are 12, 5 and 13 uni

1.	The magnitude of vectros vec A, vec B` and vec C` are 12, 5 and 13 units respectively and ` vec A + vec B= vec C`, find the angle between ` vec A and vec B` .
Answer» Since, ` (12)^(2) + (5)^(2) =(13)^(2). So A^(2) + b^(2) =C^(2)`. It means the angle between `vec A` and vec B` is `90^(@)`.

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The magnitude of vectros vec A, vec B` and vec C` are 12, 5 and 13 units respectively and ` vec A + vec B= vec C`, find the angle between ` vec A and vec B` .

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