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If veca and vecb are unit vectors and ve...

If `veca` and `vecb` are unit vectors and `veca+vecb` is also a unit vector, then write the measure of the angle between `veca` and `vecb`

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If veca=2vecb and vecc=-3vecb , then what is the angle between veca and vecc ?

Let the vectors veca and vecb such that abs(veca)=3 and abs(vecb)=frac[sqrt2][3] . If vecatimesvecb is a unit vector, then find the angle between veca and vecb .

Knowledge Check

  • If veca and vecb are unit vectors such that vecaxxvecb is a unit vector, then the angle between veca and vecb is ____

    A
    of any measure
    B
    `pi/4`
    C
    `pi/2`
    D
    `pi`

  • If vecA and vecB are two vectors then the correct statement is

    A
    `vecA+vecB = vecB+vecA`
    B
    `vecA-vecB = vecB-vecA`
    C
    `vecA xx vecB = vecB xx vecA`
    D
    None of these

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