MathLover1 Joined Jun 27, 2021 Messages 2,989 Reaction score 2,886 Jan 23, 2022 #2 u= <-3,4> v= < 2, -5> 2u= <-3*2,1*2> 2u= <-6,2> 3v= <2*3,-5*3> 3v= <6,-15> 2u-3v= <-6-6, 2-(-15)> 2u-3v= <-12, 2+15> 2u-3v= <-12, 17>
u= <-3,4> v= < 2, -5> 2u= <-3*2,1*2> 2u= <-6,2> 3v= <2*3,-5*3> 3v= <6,-15> 2u-3v= <-6-6, 2-(-15)> 2u-3v= <-12, 2+15> 2u-3v= <-12, 17>
nycmathguy Joined Jun 27, 2021 Messages 5,386 Reaction score 422 Jan 24, 2022 #3 MathLover1 said: u= <-3,4> v= < 2, -5> 2u= <-3*2,1*2> 2u= <-6,2> 3v= <2*3,-5*3> 3v= <6,-15> 2u-3v= <-6-6, 2-(-15)> 2u-3v= <-12, 2+15> 2u-3v= <-12, 17> Click to expand... A simple case of arithmetic errors.
MathLover1 said: u= <-3,4> v= < 2, -5> 2u= <-3*2,1*2> 2u= <-6,2> 3v= <2*3,-5*3> 3v= <6,-15> 2u-3v= <-6-6, 2-(-15)> 2u-3v= <-12, 2+15> 2u-3v= <-12, 17> Click to expand... A simple case of arithmetic errors.