olamijujoseph05 olamijujoseph05

25-08-2020
Mathematics

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Given that P = 2i – 3j and Q = -i –j, find P + Q

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ikozldso ikozldso

25-08-2020

2i -3j -i -j
= i-4j

P+Q
= sqrt(1^2+(-4)^2)
= sqrt(17)

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