IB Mathematics AA HL - Popular Quizzes
Systems of Linear Equations
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Question 1
[Maximum mark: 6]
The system of equations given below represents three planes in space.
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Show that this system of equations has an infinite number of solutions. [3]
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Find the parametric equations of the line of intersection of the three planes. [3]
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Question 2
[Maximum mark: 9]
Consider the following system of equations:
where .
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Find conditions on and for which
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the system has no solutions;
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the system has only one solution;
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the system has an infinite number of solutions. [6]
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In the case where the number of solutions is infinite, find the general
solution of the system of equations in Cartesian form. [3]
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Question 3
[Maximum mark: 6]
The system of equations given below represents three planes in space.
Find the set of values of and such that the three planes have exactly one intersection point.
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Question 4
[Maximum mark: 8]
Consider the following system of equations:
where .
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Show that this system does not have a unique solution for any value of . [4]
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Determine the value of for which the system is consistent.
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For this value of , find the general solution of the system. [4]
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