Post Utme Greenfield University 2019 Mathematics Question 21

Practice objective / multiple choice question 21 from the 2019 Post Utme Greenfield University Mathematics examination.

Post Utme Greenfield University 2019 Mathematics Objective / Multiple Choice
Question 21 POST_UTME_GREENFIELD_UNIVERSITY • 2019 • MATHEMATICS • objective

If \(\vec{a} = egin{pmatrix} 2 \ 3 \end{pmatrix}\) and \(\vec{b} = egin{pmatrix} -1 \ 4 end{pmatrix}\), find the unit vector in the direction of \(\\(end{pmatrix}), find the unit vector in the direction of \vec{a} + \vec{b}\).

Answer Options

Correct Answer A. \begin{pmatrix} \(\frac{1}\){\(\sqrt{26}\)}\) \\ \(\frac{3}\){\(\sqrt{26}\)}\) \end{pmatrix}
B. \begin{pmatrix} \(\frac{1}\){\(\sqrt{26}\)}\) \\ -\(\frac{3}\){\(\sqrt{26}\)}\) \end{pmatrix}
C. \begin{pmatrix} -\(\frac{1}\){\(\sqrt{26}\)}\) \\ \(\frac{3}\){\(\sqrt{26}\)}\) \end{pmatrix}
D. \begin{pmatrix} -\(\frac{1}\){\(\sqrt{26}\)}\) \\ -\(\frac{3}\){\(\sqrt{26}\)}\) \end{pmatrix}
Correct Answer
A
Correct Option:
\begin{pmatrix} \(\frac{1}\){\(\sqrt{26}\)}\) \\ \(\frac{3}\){\(\sqrt{26}\)}\) \end{pmatrix}

About This Question

This is Post Utme Greenfield University 2019 Mathematics Question 21. It is one of the objective questions from the 2019 Post Utme Greenfield University Mathematics examination.

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