AP

MATHEMATICS · Multi-part · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Let

\vec{a}=3\mathbf{i}+4\mathbf{j}

and

\vec{b}=-\mathbf{i}+2\mathbf{j}

. (i) Find the vector

\vec{a}+\vec{b}

. (ii) Calculate its magnitude.