dkornelsen10 dkornelsen10

02-02-2017
Mathematics

Answered

Find the specified vector or scalar.

u = -4i + 1j and v = 4i + 1j; Find .u+v

Asqrt34

B8
C5
D2

Verified Answer :

LammettHash LammettHash

02-02-2017

Since \(\mathbf u+\mathbf v=(-4+4)\,\vec i+(1+1)\,\vec j=2\,\vec j\)

so the norm is

\(\|\mathbf u+\mathbf v\|=\sqrt{2^2}=2\)

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