Question

When a number is multiplied by another number, the product is the square of the number. When the two numbers are subtracted their difference is zero. Then the denominator of sum of their reciprocal is always, _____________

Answer 1

Answer:

Step-by-step explanation:

At first, school arithmetic is mostly concerned with the whole numbers: 0, 1, 2, 3, and so on.1 The child’s focus is on counting and on calculating— adding and subtracting, multiplying and dividing. Later, other numbers are introduced: negative numbers and rational numbers (fractions and mixed numbers, including finite decimals). Children expend considerable effort learning to calculate with these less intuitive kinds of numbers. Another theme in school mathematics is measurement, which forms a bridge between number and geometry.

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