Math, asked by soniaaneja8629, 9 hours ago

3 (-5) -19 3. The numerical expression + shows that 8 7 56 (a) rational numbers are closed under addition. (b) rational numbers are not closed under addition. (c) rational numbers are closed under multiplication. (d) addition of rational numbers is not commutative.​

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Answered by navdeepbawa9
1

Answer:

all of the above

For any two rational numbers a and b,

(a+b),(a−b),(b−a) & (a×b) are all rational numbers.

Thus, rational numbers are closed under addition, subtraction and multiplication.

Answered by helper016455
2

Answer:

all of above

Step-by-step explanation:

For any two rational numbers a and b,

(a+b),(a−b),(b−a) & (a×b) are all rational numbers.

Thus, rational numbers are closed under addition, subtraction and multiplication

please mark as brainlist

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