Question

If A=2i+j,B=3j-k ,C=6i-2k then value of A-2B+3C
a)20i+5j+4k
b)20i-5j-4k
c)4i+5j+20k
d)5i+4j+10k​​

Answer 1

Answer:

i think 4i+5j+20k is the correct ans i hope its help you

Answer 2

Answer:

I think 20i-5j-4k

Explanation:

A-2B+3C

2i+j-2(3j-k) +3(6i-2k)

2i+j-6j-2k+18i-6k

2i+18i+j-6j-2k-6k

20i-5j-4k