// Numbas version: exam_results_page_options {"name": "Question 13 TRUE/FALSE", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["a"], "name": "Question 13 TRUE/FALSE", "tags": [], "preamble": {"css": "", "js": ""}, "advice": "

We are given that x = TRUE, y = FALSE.

The line

\n

x = (y|!y) & x

\n

says, x is true if both of the following are true: y is either true or false, and x is true.

\n

Then,

\n

z = x

sets $z$ to be equal to $x$, hence its earlier value is irrelevant.

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What is the value of $z$?

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{a}

", "

FALSE

", "

TRUE

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> x = TRUE
> y = FALSE
> z = {a}
> x = (y|!y) & x
> z = x
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