jacks said:$\cos(1^0)$ and $\tan(1^0)$ are Rational or Irrational no.
Where angle are in Degree
help required
A rational number is a number that can be expressed as a fraction, where the numerator and denominator are both integers. This includes whole numbers, integers, and terminating or repeating decimals.
An irrational number is a number that cannot be expressed as a fraction, and has an infinite number of non-repeating decimal places. Examples include pi, the square root of 2, and the golden ratio.
A number is rational if it can be expressed as a fraction, and irrational if it cannot. One way to determine if a number is irrational is by using the decimal expansion - if the decimal goes on forever without repeating, the number is irrational.
Yes, all irrational numbers are also real numbers. Real numbers include all rational and irrational numbers, as well as imaginary numbers.
Rational and irrational numbers are important in mathematics because they help us understand and describe the world around us. They are used in various calculations and equations, and can be used to represent both discrete and continuous quantities.