Question

If A vector =2i^+3j^+k^ B ​vector 3i^+2j^+4k^then find (A vector + B vector )* (A vector - B vector )

Answer 1

vector A + vector B = 5i + 5j +5k
vector A - vector B = -i + j -3k

so vector A × vector B = -5i +5j -15k OR -i +j -3k

Answer 2

Answer:

this is the Answer..........