1.

A= 3i-j-4k B=-2i+4k-3k C=l+2j-kFind 3A-2B+4C

Answer»

Answer:

17i-3j-10k.

Explanation:

3A-2B+4C = 3(3i-j-4k)-2(-2i+4j-3k)+4(i+2j-k)

=9i-3j-12k+44i-8j+6k+4i+8j-4k

= 17i-3j-10k



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