Question

Can u Please help me review this question by solvingPart B and C

Answer 1

Part B

Given:

P(5, 16), Q(8, 4), R(28, 7), S(10, 16)

u in trigonometric form:

`\begin{gathered} u\text{ = \lparen8-5, 4-16\rparen} \\ =\text{ \lparen3, -12\rparen} \end{gathered}`

The trigonometric form of a vector v is:

`v(cos\theta,\text{ sin}\theta)`

Solving for u:

`\begin{gathered} u\text{ = }\sqrt{3^2\text{ + \lparen-12\rparen}^2} \\ =\text{ 12.37} \end{gathered}`

Solving for the angle: