Question

a vector= i^-7j^+7k^ and b=3i^-2j^+2k^​

Answer 1

Answer:

axb = i(-14+14)-j(2-21)+k(-2+21)= 19j+19k.

resultant = under root (19)^2+(19)^2 =19√2

Answer 2

Answer:

sorry

Step-by-step explanation:

I haven't learnt yet