233 results.
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in Algebra
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Question in LANTITE (Numeracy)
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Question in Algebra
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Question in Algebra
Things like "expand 4(5a-3)"
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Question in Torris's workspace
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Question in Torris's workspace
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Ugur's copy of Find eigenvalues, characteristic polynomial and a normalised eigenvector of a 3x3 matrix Ready to useQuestion in Ugur's workspace
Given a 3 x 3 matrix, and two eigenvectors find their corresponding eigenvalues. Also fnd the characteristic polynomial and using this find the third eigenvalue and a normalised eigenvector (x=1).
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Characteristic poly, eigenvalues and eigenvectors 3x3, digonailsability (non-randomised) Ready to useQuestion in Ugur's workspace
Example of an explore mode question. Student is given a 3x3 matrix and is asked to find the characteristic polynomial and eigenvalues, and then eigenvectors for each eigenvalue. The part asking for eigenvectors can be repeated as often as the student wants, to be used for different eigenvalues.
Assessed: calculating characteristic polynomial and eigenvectors.
Feature: any correct eigenvalue will be recognised by the marking algorithm, even multiples of the obvious one(s) (which can be read off from the reduced row echelon form)
Randomisation: Not randomised, just using particular matrices. I am still working on how to randomise this for 3x3; a randomised 2x2 version exists. I have several different versions for 3x3 (not all published yet), so I could make a random choice between these in a test.
The implementation uses linear algebra functions such as "find reduced echelon form" or "find kernel of a reduced echelon form", from the extension "linalg2".
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Question in Ugur's workspace
Given 5 vectors in R4 determine if a spanning set for R4 or not by looking for any simple dependencies between the vectors.
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Question in Content created by Newcastle University
Real numbers a,b,c and d are such that a+b+c+d=1 and for the given vectors v1,v2,v3,v4 av1+bv2+cv3+dv4=0. Find a,b,c,d.
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Question in DIAGNOSYS
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Question in Deactivated user's workspace
Practice with adding, subtracting and dividing basic algebraic fractions
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Question in Deactivated user's workspace
Split ax+b(cx+d)(px+q) into partial fractions.
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Question in Deactivated user's workspace
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Question in Deactivated user's workspace
Split ax+b(cx+d)(px+q) into partial fractions.
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Question in Content created by Newcastle University
Multiplication and addition of complex numbers. Four parts.
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Question in Alexander's workspace
Express ax+b±cx+d as an algebraic single fraction over a common denominator.
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Question in Skills Audits for Maths and Stats
This question is made up of 10 exercises to practice the multiplication of brackets by a single term.
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Question in MESH
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