what is real number
Answers
Answer:
a number with positive degree is a real number
Answer:
Hey mate here is your answer....
Real Numbers are just numbers like:
1 12.38 −0.8625 34 π (pi) 198
In fact:
Nearly any number you can think of is a Real Number
Real Numbers include:
yes Whole Numbers (like 0, 1, 2, 3, 4, etc)
yes Rational Numbers (like 3/4, 0.125, 0.333..., 1.1, etc )
yes Irrational Numbers (like π, √2, etc )
Real Numbers can also be positive, negative or zero.
So ... what is NOT a Real Number?
not Imaginary Numbers like √−1 (the square root of minus 1)
are not Real Numbers
not Infinity is not a Real Number
Mathematicians also play with some special numbers that aren't Real Numbers.
The Real Number Line
The Real Number Line is like a geometric line.
A point is chosen on the line to be the "origin". Points to the right are positive, and points to the left are negative.
Real Number Line with examples
A distance is chosen to be "1", then whole numbers are marked off: {1,2,3,...}, and also in the negative direction: {...,−3,−2,−1}
Any point on the line is a Real Number:
The numbers could be whole (like 7)
or rational (like 20/9)
or irrational (like π)