46 results authored by Adrian Jannetta - search across all users.
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Given a factor of a cubic polynomial, factorise it fully by first dividing by the given factor, then factorising the remaining quadratic.
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No description given
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Manipulate surds and rationalise the denominator of a fraction when it is a surd.
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Use laws for addition and subtraction of logarithms to simplify a given logarithmic expression to an arbitrary base.
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Shows how to retrieve the student's answer to another part from a custom marking script.
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Implicit differentiation.
Given $x^2+y^2+ax+by=c$ find $\displaystyle \frac{dy}{dx}$ in terms of $x$ and $y$.
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A quartic is given and the student is asked whether the gradient is positive or negative at various values of x.
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No description given
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Shows how to retrieve the student's answer to another part from a custom marking script.
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Differentiate $\displaystyle (ax^m+bx^2+c)^{n}$.
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Differentiate $f(x) = x^m(a x+b)^n$.
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Students enter equation and turning point
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Show one of several blocks of text depending on the value of a question variable.
As well as a simple check for the value of a variable, the condition to display a block of text can be a complex expression in any of the question variables - in this example, depending on the discriminant of the generated quadratic.
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Find the first 3 terms in the MacLaurin series for $f(x)=(a+bx)^{1/n}$ i.e. up to and including terms in $x^2$.
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Given a graph of some function f, the student is asked for values of $f$ and its inverse. Function is cubic and invertible.
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No description given
