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This question generates two variables, a and b. They're chosen to be distinct, and neither takes the value zero.

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This question shows how to make the correct answer to a "choose one from a list" part depend on randomised question variables, in a couple of ways. The first part uses JME expressions to define the marks available for each choice. The second part uses the "custom marking matrix" option.

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Students will simplify radicals as well as spiral review of compound interest problems.

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Given a loaded truss, identify any zero force members by inspection.