# General Math 9th Class MCQs Chapter 5

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In 45,4 is called
base&nbsp
exponent&nbsp
integer&nbsp

In√3, 3 is called
integer
natural number

In the logarithm of number the decimal part is called
mantissa
characteristic
rational number
real part

The logarithm calculate to the base ’10’ is called
mantissa&nbsp
common logarithm&nbsp
characteristic&nbsp
natural number&nbsp

The mantissa is always taken as
positive (+)
negative (-)
±

We can write 1/10000 in scientific notation as
1 x 104
1 x 10-4
1 x101/4
1 x 10-1/4

0.0000281 can write in scientific notation
2.81 x 10-5
28.1 x 10-5
0.00281 x 10-3&nbsp
0.281 x 10-5

According to law of power of power (x3)4 we can simplify.&nbsp
x12
x3
x4
x4+3

√2+√3 is not radical, because 2 +√3 is