Math, asked by sofiaQueen, 11 months ago

here is some questions ⤵⤵⤵⤵⤵⤵⤵⤵⤵⤵⤵⤵⤵

1. division is not communicative for rational numbers proof with an example .

2. find multiplicative inverse of them
1. -3.
 {10}^{? - 100}

Answers

Answered by SouvikBaidya
0
1) By rational numbers, you are referring to numbers like 3, 1/2, -9.5, or 0. (any ratio of two integers that can be written as a fraction)

Give yourself an easy example first: 10/2=5, right?
Well, now commute or switch the order of the division: 2/10=1/5.
They are definitely not the same!

Multiplication, of course, is commutative:2⋅5=5⋅2=10 
Division is the inverse operation of multiplication, but it is NOT commutative.

Addition, we know, is commutative as well: 4 + 8 = 8 + 4 = 12.
Subtraction is the inverse operation of addition, but it is NOT commutative: 4−8≠8−4 since -4 ≠ 4.

I guess it's important to know what operations are inverses of each other, and to test the Commutative Property just in case!

2) 1/10^100 is your answer.
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