11104 results.
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Question in How-tos
This question asks the student to give a function with a particular root. It then asks them to divide by (x-{root}), and uses adaptive marking to mark against the previous answer.
This uses the "expression" data type, which is currently undocumented and experimental.
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Question in Numerical Bits'n'Pieces
Write a loop in,e.g., Matlab or Python to determine terms in a sequence.
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Question in Numerical Bits'n'Pieces
Find principal stresses by finding the eigenvalues of the matrix
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Exam (17 questions) in MATH7025
Differentiation of polynomials, cos, sin, exp, log functions. Product, quotient and chain rules.
rebelmaths
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Question in pre-algebra Numeracy and Arithmetic
Issues: alignment in columns in the working - not sure what to do about it
Decimal divided by a decimal. Multiply by a power of ten to get an integer divisor. Long and short division process. There is a remainder which we express as a decimal by continuing the division process. Rounding is required to some number of decimal places.
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Question in Thoa's workspace
Finding the arc length of a sector of a circle when given the radius of the circle and angle of the sector.
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Question in MASH Bath: Question Bank
Finding the arc length of a sector of a circle when given the radius of the circle and angle of the sector.
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Question in MASH Bath: Question Bank
Calculating the amount of money in a savings account after a given amount of time, and calculating how long it will take for the amount of savings to exceed a given value.
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Question in UiT forkurs
Solve linear equations with unkowns on both sides. Including brackets and fractions.
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Question in MASH Bath: Question Bank
Rewrite the expression $\frac{cx+d}{(x+a)(x+b)}$ as partial fractions in the form $\frac{A}{x+a}+\frac{B}{x+b}$.
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Question in MASH Bath: Question Bank
Simplifying expressions from $\frac{x^mx^n}{x^p}$ to $x^{m+n-p}$.
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Question in UiT forkurs
Factorising polynomials using the highest common factor.
Adapted from 'Factorisation' by Steve Kilgallon.
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Question in CHY1201 - SpectroscopyThe reduced masses are pre-calculated for this question and included in a list. It would be more elegant to program Numbas to permute atoms together to generate diatomic molecules while constraining the permutations to those which are chemically/physically reasonable, so as to allow calculation of each reduced mass directly from the atomic masses- but organising this with high computational efficiency might be a significant programing task (add to "to do" list).
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Question in CHY1201 - Spectroscopy
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Question in CHY1201 - Spectroscopy
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Question in CHY1201 - Spectroscopy
Question requires students to interchange units of Hz with MHz, GHz, THz. Question is not very efficient at present- frequencies spanning many orders of magnitude are generated by variables in a clumsy way. Could be improved by having frequency generated by a 10^((random(1000..4000)/1000) variable instead, for example.
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Question in CHY1201 - Spectroscopy
No description given
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Question in CHY1201 - SpectroscopyQuestion requires students to themselves calculate how many electrons are in the conjugated system for the molecules included in this question. As is standard for applications of the "particle in a box" model, the embedded assumption is that one electron is donated to the pi-system by each carbon within the conjugated chain. Students instructed to assume that there are 22 conjugated electrons in Beta-carotene.
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Exam (40 questions) in Skills Audits for Maths and Stats
Post Graduate Taught COM programmes
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Exam (40 questions) in Skills Audits for Maths and Stats
COM undergraduate courses
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Question in Engineering Statics
Add three vectors by determining their scalar components, summing them and then resolving the rectangular components to find the magnitude and direction of the resultant.
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Exam (64 questions) in Skills Audits for Maths and Stats
Skills Audit for Maths and Stats for MAS003 SEFY students without a prerequisite of A-level Maths.
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Question in Engineering Statics
Calculate the moment of a force about three points using Verignon' theorem. All forces and points are in the same plane.
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Question in Engineering Statics
Find the sum of two couples in a plane.
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Question in Engineering Statics
Find the moment of a couple formed by two equal and opposite forces.
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Exam (6 questions) in Trigonometry
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Question in Trigonometry
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Question in Trigonometry
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Question in Trigonometry
testing sin, cos, tan of random(0,90,120,135,150,180,210,225,240,270,300,315,330) degrees but in radians
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Question in Trigonometry
testing sin, cos, tan of angles that are negative or greater than 2pi radians that result in nice exact values.