Playing I Need Solution To This Vector Question - Education - Nairaland
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| Playing I Need Solution To This Vector Question by henroo2003: 5:42pm On Jan 28, 2018 |
find the magnitude of the vector 2a-3b given two vectors a=6i+3j-k and b=4i-5j+8k |
| Re: Playing I Need Solution To This Vector Question by engrjosefz(m): 7:25pm On Jan 28, 2018 |
solution a=6i+3j-k : 2a = 2(6i+3j-k) = 12i+6j-2k b=4i-5j+8k : 3b= 3(4i-5j+8k) = 12i-15j+24k 2a-3b = (12i+6j-2k) - (12i-15j+24k) ==0i+21j-26k. =√(0²+21²(-26)² =√(0+441+676) =33.42 1 Like |
| Re: Playing I Need Solution To This Vector Question by sirusX(m): 7:55pm On Jan 28, 2018 |
engrjosefz:You’re almost there....just determine the magnitude of your answer...Q.E.D 1 Like |
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