B

9000108804

Parte: 
B
Determina los puntos que aparecen al efectuar rotación de $60^{\circ}$ del punto $A=[3,2]$ alrededor del punto $B=[1,1]$ . Considera la rotación positiva y la negativa.
\(\left [2\pm \frac{\sqrt{3}} {2} , \frac{3} {2} \mp \sqrt{3}\right ]\)
\(\left [1\pm \frac{\sqrt{3}} {2} , \frac{1} {2} \mp \sqrt{3}\right ]\)
\(\left [2\pm \frac{\sqrt{2}} {2} , \frac{3} {2} \mp \sqrt{2}\right ]\)
\(\left [1\pm \frac{\sqrt{2}} {2} , \frac{1} {2} \mp \sqrt{2}\right ]\)

9000111806

Parte: 
B
Identifica la recta cuyo ángulo con la recta \(s\) es igual a \(60^{\circ }\). \[ \begin{aligned}[t] s\colon x& = 2 + t, & \\y & = -1 - 2t, \\z & = 3 - t,\ t\in \mathbb{R} \\ \end{aligned} \]
\(\begin{aligned}[t] r\colon x& = t, & \\y & = -3 + t, \\z & = 1 + 2t,\ t\in \mathbb{R} \\ \end{aligned}\)
\(\begin{aligned}[t] q\colon x& = 1, & \\y & = -1 - t, \\z & = 3 + 2t,\ t\in \mathbb{R} \\ \end{aligned}\)
\(\begin{aligned}[t] p\colon x& = -5 - 2t,& \\y & = 2 + 4t, \\z & = 2 + 2t,\ t\in \mathbb{R} \\ \end{aligned}\)

9000111807

Parte: 
B
Identifica la recta cuyo ángulo con el plano \[ 2x - y + 3z - 5 = 0 \] es igual a \(30^{\circ }\).
\(\begin{aligned}[t] p\colon x& = 2 + t, & \\y & = 1 + 3t, \\z & = -2t,\ t\in \mathbb{R} \\ \end{aligned}\)
\(\begin{aligned}[t] r\colon x& = -2t, & \\y & = -3 + t, \\z & = 1 - 3t,\ t\in \mathbb{R} \\ \end{aligned}\)
\(\begin{aligned}[t] q\colon x& = 2 + 3t, & \\y & = 3 - 2t, \\z & = 3 + t,\ t\in \mathbb{R} \\ \end{aligned}\)

9000111808

Parte: 
B
Identifica el plano cuyo ángulo con el plano \(\rho \) es igual a \(45^{\circ }\). \[ \rho \colon \begin{aligned}[t] x& = 1 + r - 2s, & \\y& = 3 - r + 2s, \\z& = -5 - 4r,\ r,\, s\in \mathbb{R} \\ \end{aligned} \]
\(\gamma \colon 3x - 2 = 0\)
\(\beta \colon 2z - 2 = 0\)
\(\alpha \colon x + y - 2 = 0\)