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Mathematics for IGCSE & O level - Vectors (Section 2 - No. 15)
What is the magnitude of the vector \(\begin{pmatrix} 5 \\ -12 \end{pmatrix}\)?
7
13
17
169
Explication
Magnitude is calculated as sqrt(5^2 + (-12)^2) = sqrt(25+144) = sqrt(169) = 13.
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