Question

Q.19 If A = i +2j -3k and B = -2i + 3 + 5k then find the value of

i) AXB В
ii) magnitude of AⓇB
iii) unit vector along (A x B)
iv) A.B​

Answer 1

Answer:

I) By determinant

ii) By dot product

iii) divide determinant by magnitude of

both

5) 1×-2+2×0+-3×5= -2+4-15=-13