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Answer urgent please!!
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23 votes
Answer urgent please!!

Answer urgent please!!-example-1
User Kamara
by
4.3k points

1 Answer

5 votes

Answer:

  • 15

Explanation:


u=5i-j\\\\v=3i+j\\\\w=i+4j\\


v+w


3i+j+i+4j\\\\4i+5j\\\\u*(v+w)\\\\(5i-j)(4i+5j)\\\\20-5\\\\\boxed{15}

~

User Ashirwad
by
4.2k points
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