Straightforward solving linear equations question

Straightforward solving linear equations question

Straightforward solving linear equations question

A simultaneous equations question with integers only

Shows how to define variables to stop degenerate examples.

Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix. 

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.

Finding the modulus and argument (in radians) of four complex numbers; the arguments between $0$ and $2 \pi$ and careful with quadrants!

Find the general solution of $y''+2py'+(p^2-q^2)y=A\sin(fx)$ in the form  $A_1e^{ax}+B_1e^{bx}+y_{PI}(x),\;y_{PI}(x)$ a particular integral. Use initial conditions to find $A_1,B_1$.

Seven standard elementary limits of sequences. 

Let $x_n=\frac{an+b}{cn+d},\;\;n=1,\;2\ldots$. Find  $\lim_{x \to\infty} x_n=L$ and find least $N$ such that $|x_n-L| \lt 10^{-r},\;n \geq N,\;r \in \{2,\;3,\;4\}$.

$x_n=\frac{an+b}{cn+d}$. Find the least integer $N$ such that $\left|x_n -\frac{a}{c}\right| \lt 10 ^{-r},\;n\geq N$, $2\leq r \leq 6$.

Given a set in predicate form i.e. $A=\{x|P(x)\}$, find and input the elements of the set.

Given a set $A$, elements of which may also be sets, determine if the given elements or subsets are in $A$.

Given some random finite subsets of the natural numbers, perform set operations $\cap,\;\cup$ and complement.

Enumerate elements of a set given in predicate form.

For example, find all elements of $A=\{x\in\mathbb{Z}\;|\;\;|2x-5|<4\}$.

Implicit differentiation.

Given $x^2+y^2+ax+by=c$ find $\displaystyle \frac{dy}{dx}$ in terms of $x$ and $y$.

Implicit differentiation.

Given $x^2+y^2+dxy +ax+by=c$ find $\displaystyle \frac{dy}{dx}$ in terms of $x$ and $y$.

Also find two points on the curve where $x=0$ and find the equation of the tangent at those points.

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Students enter equation and turning point

English sentences which are propositions are given and for each the appropriate statement involving quantifiers is to be chosen. 

English sentences which are propositions are given and the appropriate logical expression chosen for the negation of the sentence.

English sentences are given and for each the appropriate statement involving quantifiers is to be chosen. Also choose whether the statements are true or false.

Quotient and remainder, polynomial division.

a) Given a recursively defined sequence $t(n)$, find $t(n)$ as a function of $n$.

b) Given a sequence $s(n),\;n \in \mathbb{N}$, find a recursive definition of $s(n)$

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$A$ a $3 \times 3$ matrix. Using row operations on the augmented matrix $\left(A | I_3\right)$ reduce to $\left(I_3 | A^{-1}\right)$.

The random variable $X$ has a PDF which involves a parameter $c$. Find the value of $c$. Find the distribution function $F_X(x)$ and $P(a \lt X \lt b)$.

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Quotient and remainder, polynomial division.