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Question 7* Given that a=([2],[3]),|a|= sqrt()(13) 5 13 4

Question 77*\newlineGiven that a=(23),∣a∣= a=\left(\begin{array}{l}2 \\ 3\end{array}\right),|a|= \newline(13) \sqrt{ }(13) \newline55\newline1313\newline44

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Q. Question 77*\newlineGiven that a=(23),∣a∣= a=\left(\begin{array}{l}2 \\ 3\end{array}\right),|a|= \newline(13) \sqrt{ }(13) \newline55\newline1313\newline44
  1. Calculation: Calculation: ∣a∣=22+32=4+9=13|a| = \sqrt{2^2 + 3^2} = \sqrt{4 + 9} = \sqrt{13}.
  2. Check for math errors: Check for math errors: 222^2 is indeed 44, and 323^2 is indeed 99, so adding them up gives 1313, and the square root of 1313 is the correct magnitude of vector aa.

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