8120 results.

Julien's copy of Duality of linear programming problems (2 variables)
Given a linear programming problem in standard form, write down the dual problem.
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Last modified 20/08/2019 02:20
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Integration revision
Questions on integration using various methods such as parts, substitution, trig identities and partial fractions.
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Last modified 19/08/2019 20:06
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CLE2. True/false multiple choice
Template question. Seven statements given and student should determine if they are true or false. It is possible that 1,2,3,4,5 or 6 out of the 7 statements will be true and these are all equally likely.
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Last modified 19/08/2019 16:59
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Last modified 19/08/2019 14:55
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Last modified 19/08/2019 12:33
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Question Ready to use
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Last modified 19/08/2019 11:35
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Julien's copy of Interactive NewtonRaphson method
Write down the NewtonRaphson formula for finding a numerical solution to the equation $e^{mx}+bxa=0$. If $x_0=1$ find $x_1$.
Included in the Advice of this question are:
6 iterations of the method.
Graph of the NR process using jsxgraph. Also user interaction allowing change of starting value and its effect on the process.
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Last modified 19/08/2019 10:27
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Julien's copy of Prove discontinuity of a function at a given point
A graphical approach to aiding students in writing down a formal proof of discontinuity of a function at a given point.
Uses JSXgraph to sketch the graphs and involves some interaction/experimentation by students in finding appropriate intervals.
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Last modified 19/08/2019 10:26
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Julien's copy of Solve a linear programming problem
Student is given a set of constraints for a linear program. Asked to enter the constraints as inequalities, and then to identify the optimal solution.
Problem with solving the simultaneous equations gven by the constraints  too unwieldy and not given enough marks for doing so. Best if the point of intersection is given graphically by putting the mouse over the intersection.
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Last modified 19/08/2019 09:55
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Johan's copy of Mark equations
All the answers in this question are equations. In order to mark each equation, Numbas needs to pick some values that satisfy the equation and some that don't, and check that the student's answer agrees with the expected answer.
Any equation with the same solution set as the expected answer will be marked correct.
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Last modified 18/08/2019 11:38
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