Which among the following is an irrational quantity?
Show answer & explanation
Correct answer: D
Explanation
Correct Answer is option 4 i.e. cos 30°
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Concept |
Understanding |
Application |
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A rational number is a number that can be expressed as the quotient or fraction p/q of two integers |
We need to find the value of each option. |
tan 30° tan 60° = √3 × 1/√3 = 1 (Rational) sin 30° = 1/2 (Rational) tan 45° = 1 (Rational) cos 30° = √3/2 (Irrational) |