Negative square root of 2 .
Negative (pi) .
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- sqrt(26)
To 4.5, add the difference between the two numbers (0.1), multiplied by some irrational number that is less than 1 (or divided by an irrational number greater than 1). For example:4.5 + 0.1 / pi
No, numbers less than 0.833 are not always irrational. For instance, 0.2 isn't an irrational number
The exact value is an irrational number, and can't be written on paper with digits.0.34202 is less than 0.000042 percent wrong.Cos(70 deg) is an irrational number and it is impossible to give its exact value.
You can add a small irrational number - smaller than the difference - to one. For example, 1 + pi/4.