Part B
Given:
P(5, 16), Q(8, 4), R(28, 7), S(10, 16)
u in trigonometric form:
[tex]\begin{gathered} u\text{ = \lparen8-5, 4-16\rparen} \\ =\text{ \lparen3, -12\rparen} \end{gathered}[/tex]
The trigonometric form of a vector v is:
[tex]v(cos\theta,\text{ sin}\theta)[/tex]
Solving for u:
[tex]\begin{gathered} u\text{ = }\sqrt{3^2\text{ + \lparen-12\rparen}^2} \\ =\text{ 12.37} \end{gathered}[/tex]
Solving for the angle:
[tex]undefined[/tex]
