1.

Given vecA=3 hati+hatj and vecB=6hati+8hatj. Which of the following satements is incorrect ?

Answer»

`VECA.VECB=50`
`(|vecA|)/(|vecB|)=1/2`
`|vecA|=5`
`vecA.vecB=48`

SOLUTION :`(A) vecA.vecB=18+52=50`
`(B)|A|=5,|B|=10]`


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