Question

Let a vector =i ^+4j^+2k^,b vector=3i^-2j^+7k^ and c vector=2i^-j^+4k^.Find vector d which is perpendicular to both a vector and b vec

Answer 1

we know that cross product of two vectors gives us a vector which is perpendicular two both of them .

so,

vector a × vector b = (4.7-(-2.2))i^ -(7.1-(3.2))j^+(1.-2-(3.4))k^ = 32i^ -j^ -14k^

is your question someway incomplete?