What will be the sign of the result of the next exercise?
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What will be the sign of the result of the next exercise?
Let's recall the law:
Therefore, the sign of the exercise result will be positive:
Positive
Convert \( \frac{7}{2} \)into its reciprocal form:
Think of it like opposites canceling out! When you multiply two negative numbers, you're essentially removing two negative signs, leaving you with a positive result. It's a fundamental rule in mathematics.
Use this simple pattern: same signs = positive, different signs = negative. So (+)(+) = +, (-)(-)= +, but (+)(-) = - and (-)(+) = -.
The calculation gives us . First determine the sign (positive), then multiply the numbers: 2 × 1/2 = 1.
No! The sign rules work exactly the same with fractions, decimals, or whole numbers. The type of number doesn't change how positive and negative signs interact.
Count the negative signs! An even number of negatives gives a positive result, an odd number of negatives gives a negative result.
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