MCQ of Maths Class 9
(2i) (-3i) = ……………………… .
-6
6
-6i
6i
Scientific notation of 357.4 is ______
3.574 x 102
30157 x 103
357.4 x 103
3.574 x103
Fractional part of logarithms is called?
Mantissa
Antilog
Characteristic
None of them
If “a” is a real number then the property a =a is called ………….. .
Reflexive property
Symeetric property
Transitive property
None of these
Value of e is
3.718
2.718
4.718
3.1428
If a, b and c are the three real numbers, then the property [either a = b or a > b or b < a ] is called ..................... .
Transitive property
Reflexive property
Trichotomy property
None of these
Those number which cannot be expressed as quotient of integers are called:
real numbers
rational numbers
irrational numbers
integers numbers
Real part of 2ab (-1+i2) is
2ab
-2ab
2abi
-2abi
If z < 0 then x < y ⇒ ______
xz >yz
xz >yz
xz=yz
none of these
The quotient of two complex numbers is ……………. .
Real
Imaginary
Real and imagianry
None of these
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