True or false: a > 5 && b <= 7 && c == 9 is a...
True or false: a > 5 && b <= 7 && c == 9 is a valid boolean expression that is true only when all three relational operations are true.
Homework Answers
The answer is True.
Explanation : The boolean expression a > 5 && b <= 7 && c == 9 has three relational operators,i.e., >, <=, and ==. Expression a>5 is a logical expression and it returns 1 if the logical expression evaluates to True, it returns 0 otherwise. && is Logical AND and it returns 1 if both the expressions joined by && are True.
So if a > 5 && b <= 7 logical expression returns 1, then we will evaluate (a > 5 && b <= 7) && c==9. This logical expression will return 1 only if both the expression in it are True.
Thus, the boolean expression is true only when all three relational operations are true.
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