jika u=4i-2j+k dan v=3i+2j-5k,hasil 2u-3v=.......
Matematika
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Pertanyaan
jika u=4i-2j+k dan v=3i+2j-5k,hasil 2u-3v=.......
1 Jawaban
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1. Jawaban eripane05
u=4i-2j+k
v=3i+2j-5k
2u + 3v
= 2(4i-2j + k) + 3(3i+2j-5k)
= 8i - 4j +2k + 9i + 6j - 15k
= 17i + 2j - 13k