Discussion
The correct sequence of hierarchy of operators is _____. from highest to lowest.
(i) – or + (ii) ( )
(iii) / or * (iv) * *
Answer: B
The hierarchy of operators in an arithmetic expression, from the highest priority to the lowest, is first the parentheses, then exponentiation, then multiplication and division, and last addition and subtraction. With the symbols in the question, ( ) is item (ii), the exponent operator is item (iv), the multiplication or division is item (iii), and the plus or minus is item (i). So the sequence is (ii), (iv), (iii), which is the second option, and the unary or binary minus and plus are at the bottom. The other options put plus and minus, or the exponent, above the parentheses. The answer is (ii), (iv), (iii).
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