Question

show with example the two vectors are perpendicular to each other
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Answer 1

Answer:

you draw them perpendicular

If the angle between them is 90°

If the dot(scalar) product of them is 0

If the vector product of them is maximum

If on projection of the vectors one relation remains same with the triangle formed by using the length of vectors [ actually intended to say Pythagoras theorem ]

If the vectors are along any two of the coordinate axes.

If the area of the triangle you'll get by joining the two ends of the vectors is equal to 12×|a⃗ |×∣∣b⃗ ∣∣

If it looks like the combination of your room's floor and adjoining wall…

If it is given in book that it is perpendicular or your respected teacher say so !

Finally, If you draw a triangle by joining the farthest end of the vectors… then let the angles between the line joining the two ends be θ1 & θ2 ,then 180−(θ1+θ2)=90°

Explanation:

try to understand