Because by definition, there sum will always be zero. Because the definition of opposites are additive inverses.
It is zero and that is simply because that is how additive opposites are defined.
Zero
The term SUM means add and DIFFERRENCE means subtract. They are opposites.
"Opposites" cannot mean additive opposites since, by definition, their sum must be 0. So "opposites" is likely to mean multiplicative opposites. This gives the equation x + 1/x = 100 Then the two numbers are 0.010010 and 99.989999 to 6 dp.
Because by definition, there sum will always be zero. Because the definition of opposites are additive inverses.
It is zero and that is simply because that is how additive opposites are defined.
Zero
The term SUM means add and DIFFERRENCE means subtract. They are opposites.
If the negative has a greater absolute value, the sum will be negative. If the positive has a greater absolute value, the sum will be positive.
0
"Opposites" cannot mean additive opposites since, by definition, their sum must be 0. So "opposites" is likely to mean multiplicative opposites. This gives the equation x + 1/x = 100 Then the two numbers are 0.010010 and 99.989999 to 6 dp.
-2 and 2 are opposites as they lie on opposite side of 0 on number line. They are equal distance from 0 in different directions.
the plural of opposite is opposites.
If the people in it were complete opposites that would be an oxymoron.
There is not much to prove there; opposite numbers, by which I take you mean "additive inverse", are defined so that their sum equals zero.
The opposites would be lavish, spendthrift, wasteful, or profligate.