Is 3i-4j vector perpendicular to 4i-3j?

Answers (1)

We know that, for perpendicular vectors, the dot product is zero.

     = (4i - 3j).(3i -4j) 

     = 12 + 12 

     = 24

   which is not equal to zero.

Hence, 3i-4j vector is not perpendicular to 4i-3j.

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