pls solve all these questions
Answers
Question-1:
The additive identity for rational numbers is ____.
Answer:
c) 0 ✅
0 is the additive identity for all the rational numbers because for any rational number , + 0 =
Question-2:
The multiplicative identity for rational numbers is ____.
Answer:
b) 1 ✅
1 is the multiplicative identity for all the rational numbers because for any rational number , × 1 =
Question-3:
Additive inverse of is ______.
Answer:
a) ✅
If the questions to find the additive inverse of a rational number is asked, then just write the opposite sign of the rational number. If a rational number is positive, then its additive inverse will be negative and if it is negative, the additive inverse will be positive.
Question-4:
Additive inverse of is _____.
Answer:
d) ✅
Question-5:
The multiplicative inverse of is _____.
Answer:
c) 2 ✅
If we are asked to find the multiplicative inverse of a rational number, then do its reciprocal. Multiplicative inverse of is
Question-6:
The multiplicative inverse of is _____.
Answer:
b) ✅
Question-7:
The multiplicative inverse of 1 is ____.
Answer:
c) 1 ✅
1 and -1 are their own reciprocals.
Question-8:
The multiplicative inverse of -1 is ___.
Answer:
b) -1 ✅
Question-9:
How many rational numbers are between any two rational numbers?
Answer:
c) Countless ✅
Question-10:
The negative of 2 is ____.
Answer:
c) -2 ✅
Question-11:
The negative of -2 is ___.
Answer:
b) 2 ✅
-(-2) = +2
Question-12:
If a and b are two rational numbers then ____.
Answer:
b) < b ✅
For any rational numbers a and b,
a < < b
Question-13:
The rational number which doesn't have a reciprocal is ____.
Answer:
a) 0 ✅
Reciprocal of is which is not defined.
Question-14:
The rational number which is equal to its negative is ___.
Answer:
a) 0 ✅
0 is neither positive nor negative.
Question-15:
Reciprocal of is ____.
Answer:
a) x ✅
Question-16:
Reciprocal of positive rational number is _____.
Answer:
a) a positive rational number ✅
Answer:
Question-1:
The additive identity for rational numbers is ____.
Answer:
c) 0 ✅
0 is the additive identity for all the rational numbers because for any rational numbers {p}{q},{p}{q} + 0 = {p}{q}
Question-2:
The multiplicative identity for rational numbers is ____.
Answer:
b) 1 ✅
1 is the multiplicative identity for all the rational numbers because for any rational number {p}{q}, \sf \dfrac {p}{q} × 1 = {p}{q}
Question-3:
Additive inverse of {2}{3} is ______.
Answer:
a) {-2}{3} ✅
If the questions to find the additive inverse of a rational number is asked, then just write the opposite sign of the rational number. If a rational number is positive, then its additive inverse will be negative and if it is negative, the additive inverse will be positive.
Question-4:
Additive inverse of \sf \dfrac {-3}{4} is _____.
Answer:
d) \sf \dfrac {3}{4} ✅
Question-5:
The multiplicative inverse of \sf \dfrac {1}{2} is _____.
Answer:
c) 2 ✅
Question-6:
The multiplicative inverse of \sf \dfrac {-2}{5} is _____.
Answer:
b) \sf \dfrac {-5}{2} ✅
Question-7:
The multiplicative inverse of 1 is ____.
Answer:
c) 1 ✅
1 and -1 are their own reciprocals.
Question-8:
The multiplicative inverse of -1 is ___.
Answer:
b) -1 ✅
Question-9:
How many rational numbers are between any two rational numbers?
Answer:
c) Countless ✅
Question-10:
The negative of 2 is ____.
Answer:
c) -2 ✅
Question-11:
The negative of -2 is ___.
Answer:
b) 2 ✅
-(-2) = +2
Question-12:
If a and b are two rational numbers then ____.
Answer:
b) {a+b}{2} < b ✅
For any rational numbers a and b,
a < {a+b}{2} b
Question-13:
The rational number which doesn't have a reciprocal is ____.
Answer:
a) 0 ✅
Reciprocal of \sf \dfrac {0}{1} is \sf \dfrac {1}{0} which is not defined.
Question-14:
The rational number which is equal to its negative is ___.
Answer:
a) 0 ✅
0 is neither positive nor negative.
Question-15:
Reciprocal of \sf \dfrac {1}{x} is ____.
Answer:
a) x ✅
Question-16:
Reciprocal of positive rational number is _____.
Answer:
a) a positive rational number ✅
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