Let and . Find the scalar projection of on…

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Let

\vec{a}=2\mathbf{i}+3\mathbf{j}-\mathbf{k}

and

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

. Find the scalar projection of

\vec{a}

\vec{b}

. (a)

-\dfrac{6}{\sqrt{14}}

(b)

-2

(c)

2

(d)

-6

Related theory

Dot Product
Vectors
Vectors (Precalculus)
Scalar product
Vector Algebra
Projection of a vector on a line

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