1.

Given `vecA=3 hati+hatj and vecB=6hati+8hatj.` Which of the following satements is incorrect ?A. `vecA.vecB=50`B. `(|vecA|)/(|vecB|)=1/2`C. `|vecA|=5`D. `vecA.vecB=48`

Answer» Correct Answer - D
`(A) vecA.vecB=18+52=50`
`(B)|A|=5,|B|=10]`


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