1.

The magnitudes of vectors `vecA.vecB` and `vecC` are respectively 12,5 and 13 unira and `vecA+vecB=vecC`, then the angle between `vecA` and `vecB` is :

Answer» Correct Answer - C
`vecA+vecB=vecC`
as `vecA^(2)+B^(2)=C^(2)`
thus angle between A and B is `90^(@)`


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