1.

If vec(a), vec(b) are collinear, then which of the following is false?

Answer»

`VEC(a) xx vec(B)= vec(0)`
`vec(a).vec(b) = +-|vec(a)||vec(b)|`
`vec(a) xx vec(b)= 0`
`vec(a) = t vec(b)`

Answer :C


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