Math, asked by buntyy, 1 year ago

if a=2i-j+k,b=i-3j-5k then find (a*b)

Answers

Answered by savithrimohan1pbythf

1

a*b=2i-j+k
i-3j-5k
=(5-3)i-(-10-1)j+(-6-1)k
=2i+11j-7k

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