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2 years ago

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

Mathematics

1 answer:

Orlov [11]2 years ago

5 0

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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