121 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 Torris's workspace
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Question in Torris's workspace
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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 Core Foundation Maths
A simultaneous equations question with integers only
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Question in Core Foundation Maths
Solve for x and y: a1x+b1y=c1a2x+b2y=c2
The included video describes a more direct method of solving when, for example, one of the equations gives a variable directly in terms of the other variable.
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Question in Deactivated user's workspace
A simultaneous equations question with integers only
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Question in Algebra
No description given
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Question in Content created by Newcastle University
Solving an equation of the form ax≡bmodn where a and n are coprime.
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Question in Content created by Newcastle University
Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix.
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Question in Content created by Newcastle University
Two questions testing the application of the Sine Rule when given two angles and a side. In this question, the triangle is always acute.
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Question in Content created by Newcastle University
A question testing the application of the Cosine Rule when given two sides and an angle. In this question, the triangle is always obtuse and both of the given side lengths are adjacent to the given angle (which is the obtuse angle).
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Question in Content created by Newcastle University
Two questions testing the application of the Cosine Rule when given two sides and an angle. In these questions, the triangle is always acute and both of the given side lengths are adjacent to the given angle.
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Question in Julia Goedecke's contributions
Educational calculation tool rather than "question".
This allows the student to input a linear system in augmented matrix form (max rows 5, but any number of variables). Then the student can decide to swap some rows, or multiply some rows, or add multiples of one row to other rows. The student only has to input what operation should be performed, and this is automatically applied to the system. This question has no marks and no feedback as it's just meant as a "calculator".
It has some rounding to 13 decimal places, as otherwise some fraction calculations become incorrectly displayed as a very small number instead of 0.
It would be possible to extend to more than 5 rows, one just has to put in a lot more variables and so on. I just had to choose some place to stop.
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Question in rhaana's workspace
Based on Chapter 8, quite loosley.Putting a pair of linear equations into matrix notation and then solving by finding the inverse of the coefficient matrix.
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Question in Algebra
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Question in DIAGNOSYS
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Question in DIAGNOSYS
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Question in Julie's workspace
Method of undermined coefficients:
Solve: d2ydx2+2adydx+a2y=0,y(0)=c and y(1)=d. (Equal roots example). Includes an interactive plot.
rebelmaths