Not necessarily. The value of 3 (rational) raised to the power 1/2 (rational) is not rational.
Unless the rational number is zero, the answer is irrational.
If you multiply a rational and an irrational number, the result will be irrational.
The result will also be a rational number.
Because when one rational number is subtracted from another rational number the result is a rational number. Don't forget that integers (ℤ) are a subset of rational numbers (ℚ).
Not necessarily. The value of 3 (rational) raised to the power 1/2 (rational) is not rational.
The conditional operator in C (and C++, C# and other languages) consists of two symbols, '?' and ':'. Together, they can be used to form an expression from three subexpressions:e1 ? e2 : e3The conditional operator is evaluated in two steps; first, the expression e1 is evaluated, if it has a true value, then e2 is evaluated and its value is returned as the result of the entire expression, otherwise (if e1 is false) e3 is evaluated and its value is returned as the result of the entire expression.
When the rational number is 0.
If you divide a rational number by an irrational number, or vice versa, you will ALMOST ALWAYS get an irrational result. The sole exception is if you divide zero (which is rational) by any irrational number.
If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.
Unless the rational number is zero, the answer is irrational.
PHP is a programming language. An "expression" is anything that can be evaluated (calculated) to get (among other things) a number. For example, numbers themselves; variables that represent numbers; calculations that result in a number (additions, subtractions, etc.), are all numeric expressions.
If you multiply a rational and an irrational number, the result will be irrational.
The result will also be a rational number.
Because when one rational number is subtracted from another rational number the result is a rational number. Don't forget that integers (ℤ) are a subset of rational numbers (ℚ).
It is irrational - unless the divisor is 0 in which case the division is not defined.
It the combination is multiplication and the rational number is 0, then the result is rational. Otherwise it is irrational.