Level:
Project ID:
9000107507
Accepted:
1
Clonable:
0
Easy:
0
Find \(\mathop{\mathrm{tg}}\nolimits \varphi \) where
\(\varphi \) is the angle
between the lines \(p\)
and \(q\).
\[
\begin{aligned}[t] p\colon x& = 1 + t, &
\\y & = 3 + 2t;\ t\in \mathbb{R};
\\ \end{aligned}\quad q\colon y = 1
\]
\(2\)
\(\frac{1}
{2}\)
\(- 1\)
\(0\)