Q. Which of the following are real numbers?Multi-select Choices:(A) 10(B) 109(C) 1.444…(D) 3
Real Numbers Definition: Real numbers include all the numbers on the number line, including all rational and irrational numbers. Rational numbers are those that can be expressed as a fraction of two integers, ba, where a and b are integers and b=0, and irrational numbers cannot be expressed as a simple fraction.
10 as a Real Number: (A) 10 is a whole number, which is also a rational number because it can be expressed as a fraction (110). Therefore, it is a real number.
ext{9/10 as a Real Number:} (B) 109 is a fraction, which is a rational number. All rational numbers are real numbers.
1.444... as a Real Number: (C) 1.444… (where the dots indicate that the number is repeating) is a repeating decimal, which is also a rational number. Therefore, it is a real number.
3 as an Irrational Real Number: (D) 3 or the square root of 3 is an irrational number because it cannot be expressed as a simple fraction. However, irrational numbers are also real numbers.
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