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Given the vectors #u=<2,2>#, #v=<-3,4>#, and #w=<1,-2>#, how do you find #2-||u||#?

1 Answer

Sep 22, 2016

#2 - 2 sqrt(2)#

Explanation:

We have: #u = <2, 2>#

#=> 2 - abs(u) = 2 - abs(<2, 2>)#

#=> 2 - abs(u) = 2 - sqrt(2^(2) + 2^(2))#

#=> 2 - abs(u) = 2 - sqrt(4 + 4)#

#=> 2 - abs(u) = 2 - sqrt(8)#

#=> 2 - abs(u) = 2 - 2 sqrt(2)#

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