Two rational numbers a/b and c/d are equal iff ______.
ad = bc
ac = bd
ab = cd
None of these
The reciprocal of 62 = ______________
1/36
-1/36
1/12
(-7/10)3 ÷ (-7/10)9 = ________________
(-1/10)12
(-10/7)12
(-7/10)-6
(-10/7)6
The reciprocal of 8-3 is _______________
1/83
83
can't be determined
(3√5)2 = _________________
45
9√5
225
√2 is ___________
a natural number
a rational number
an irrational number
(-3)4 = ______________
81
-18
12
-12
The expression of 81/256 in powers is ___________
(-2/8)2 =
1/16
-1/6
2/16
4/16
The union of set of rational numbers and the set of irrational numbers is called the set of _______.
Real numbers
Rational numbers
Irrational numbers
