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rjkz [21]
3 years ago
9

A=3i+4j, b=5i+4j. find a+b​

Mathematics
2 answers:
natali 33 [55]3 years ago
5 0

Answer:

8i+8j

Step-by-step explanation:

3i+4j+5i+4j

i(3+5) + j(4+4)

Therefore 8i +8j

HAPPY TO HELP YOU

Airida [17]3 years ago
5 0

Answer:

Step-by-step explanation:

<u><em>we have :</em></u>

<u><em>a=3i+4j</em></u>

<u><em>b=5i+4i</em></u>

<u><em>so that : a+b=3i+4j+5i+4j</em></u>

<u><em>=(3i+5i)+(4j+4j)</em></u>

<u><em>so    a+b=8i+8j=8(i+j)</em></u>

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