Question

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If A = 2i +/- k and B =j - 4k then find the value of
of (A x B). Ä.​

Answer 1

Answer:

Answer is ZERO...

Step-by-step explanation:

since it is given that,

A=2i+j-k,

B=j-4k

on solving,

Now,(A×B)=-3i-2j-8k

And,(A×B).A=(-3i-2j-8k).(2i+j-k)

=-6-2+8=-8+8=0

Hope it helps you frnd.....