Question 1

Resuelve el siguiente sistema de ecuaciones:
$\left\{
\begin{array}{rcrcrcl}
2x&-&y&+&2z&=6\
3x&-&2y&-&z&=4\
4x&+&3y&-&3z&=1
\end{array}
ight.$

Accepted Answer

$x=1$ $y=2$ $z=3$

Answer

$x=0$ $y=0$ $z=0$

Answer

$x=3$ $y=9$ $z=4$

Question 2

Calcula la siguiente integral 
$\int(3x^4+x^2+2)dx$

Accepted Answer

$\frac{3}{5}x^5+\frac{1}{3}x^3+2x+C$

Answer

$\dfrac{3}{5}x^5+\frac{1}{3}x^3+x+C$

Answer

$\frac{5}{3}x^5+\frac{1}{3}x^3+2x+C$

Answer

$\frac{3}{5}x^5+\frac{1}{3}x^3+2x$

Question 3

Calcula el límite
$\lim_{x	o +\infty}\dfrac{5x^3+2x^2-1}{2x+3}$

Accepted Answer

$+\infty$

Answer

$5$

Answer

$4$

Answer

$-\infty$

Question 4

Calcula $3AA^T-2I$ siendo
$A=
\left(
\begin{array}{cc}
3\quad&1\
5&2
\end{array}
ight)$

Accepted Answer

$
\left(
\begin{array}{cc}
28\quad&51\
51&85
\end{array}
ight)$

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