Vectors

Vector a has coordinates (8; 10) and vector b has coordinates (0; 17). If the vector c = b - a, what is the magnitude of the vector c?

Correct answer:

|c| =  10.63

Step-by-step explanation:

$$\begin{gathered} c=b-a=(0-8;17-10)=(-8;7) \\ \mathrm{\mid }c\mathrm{\mid }=\sqrt{(-8{)}^2+7^2}=10.63 \end{gathered}$$

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