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Grade 11Vectors

If vectorA + vectorB= vectorA=vectorB then find angle between vector a and vector b

Profile image of Shubhanshu
7 Years agoGrade 11
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1 Answer

Profile image of Arun
7 Years ago

The angle between A and B is not defined.

Let vector A = a ; vector B = b.

a+b = a-b, 2b = 0(null vector).

Hence b is a null vector and a is any possible vector.

The catch is that the null vector doesn't have a well defined direction, and hence you cannot find the angle between a and b.