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This question tests the students ability to factorise simple quadratic equations (where the coefficient of the x^2 term is 1) and use the factorised equation to solve the equation when it is equal to 0.

Use laws for addition and subtraction of logarithms to simplify a given logarithmic expression to an arbitrary base.

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La cantidad de dinero que una persona obtiene en su cumpleaños sigue una secuencia aritmética.

Calcule la cantidad en un cumpleaños determinado, luego calcule la suma hasta ese punto.

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Arithmetic operations involving fractions; converting between decimals and fractions; deciding if fractions are equivalent.

Dada una secuencia geométrica, encuentre la razón común (negativa en esta pregunta), escriba la fórmula para el enésimo término y úsela para calcular un término dado.

La derivada de $\displaystyle \frac{ax+b}{\sqrt{cx+d}}$ is $\displaystyle \frac{g(x)}{2(cx+d)^{3/2}}$. Encontrar $g(x)$.

Darstellen von Zahlen an einem Felderabakus (noch ohne Anzeige der Lösung)

Solving arithmetic progressions using simultaneous equations

$I$ compact interval, $g:I\rightarrow I,\;g(x)=ax^3+bx^2+cx+d$. Find stationary points, local and global maxima and minima of $g$ on $I$

$ I $ intervalo compacto, $ g: I \ rightarrow I, \; g (x) = ax ^ 3 + bx ^ 2 + cx + d $. Encuentre puntos estacionarios, máximos locales y globales y mínimos de $ g $ en $ I $

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Multiplication of $2 \times 2$ matrices.

Add, subtract, multiply and divide algebraic fractions.

This question tests the students ability to factorise simple quadratic equations (where the coefficient of the x^2 term is 1) and use the factorised equation to solve the equation when it is equal to 0.

Add, subtract, multiply and divide algebraic fractions.

Shows how to define variables to stop degenerate examples.

Exercises in multiplying matrices. 

Solve for $x$ and $y$:  \[ \begin{eqnarray} a_1x+b_1y&=&c_1\\   a_2x+b_2y&=&c_2 \end{eqnarray} \]

The included video describes a more direct method of solving when, for example, one of the equations gives a variable directly in terms of the other variable.

Template question. The student is asked to perform a two factor ANOVA to test the null hypotheses that the measurement does not depend on each of the factors, and that there is no interaction between the factors.

A resource for Business students to practise calculating Normal probabilities and finding $Z$-values. 

Rearranging equations to change the subject

Use laws for addition and subtraction of logarithms to simplify a given logarithmic expression to an arbitrary base.