Question

what is inverse operations

Answer 1

Do you want the definition?

Answer 2

yes

Answer 3

inverse operations: Operations that "undo" each other.
-For example, multiplication and division.

Answer 4

Do you know why there are quotation marks around "undo"?

Answer 5

no

Answer 6

Because there is ONE very special case that has no inverse operation, and that is multiplication by 0, right?

Answer 7

You CAN NOT "undo" the operation of multiplying by 0. Do you know why?

Answer 8

no

Answer 9

What is zero times any number?

Answer 10

0

Answer 11

Can you "undo" that and give me back the number?

Answer 12

no

Answer 13

That is the same reason you cannot divide by zero.

Answer 14

Zero has erased ALL the information that the original number had.

Answer 15

$$\huge 0*a=0$$

Answer 16

\[\left( ab \right)\div b =a, \text{ except if b = 0}\]

Answer 17

inverse operations: Operations that "undo" each other.
-For example, multiplication and division.

Answer 18

Note: addition and subtraction are also inverse operations with NO exception.

Answer 19

$$(a + b) - b = a$$ and $$(a - b) + b = a$$

Answer 20

thxs, u hav helped me so much.

Answer 21

Thanks for trying to understand :)