Alex1976 said:Yup I know that so we have:
A dot C = 0 = 3Cx-2Cy+4Cz
B dot C = 0 = -2Cx+5Cy-2Cz
But then I'm stuck.
I can isolate any of these obviously but I can't see how there's enough information for me to solve for my unknowns...
A perpendicular vector is a vector that forms a 90 degree angle (or right angle) with another vector.
The perpendicular vector can be calculated using the dot product by first finding the cross product between the two given vectors, and then taking the cross product of that result with one of the original vectors.
No, the cross product cannot be used to find the perpendicular vector. The cross product gives a vector that is perpendicular to both of the original vectors, not just one.
The dot product is used because it gives a scalar value (a number) that represents the length of the projection of one vector onto the other. When the dot product is zero, it means that the two vectors are perpendicular. This can be used to find the perpendicular vector by using the cross product method mentioned earlier.
No, you need at least two vectors to find the perpendicular vector. One vector alone does not have enough information to determine a perpendicular vector.