talynbarfield talynbarfield

30-07-2020
Mathematics

contestada

If a = i - 9k and b = j + k , find ab .

Respuesta :

risingstar53 risingstar53

13-08-2020

Answer:

solution

given a=1_9k and b=j+k

Now,ab=(1_9k)(j+k)

=1((j+k)-9k(j+k)

=j+k_9jk-9k^2

=k_9k^2+j_9jk

=k((1_9k)+j(1_9k)

=(1_9k)(k+k)

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