alleryWhich of these is an IRRATIONAL number?
A3/4
B√4
C√2
D-7
Answer & Solution
Correct answer: C. √2
√2 ≈ 1.4142… is a non-terminating, non-repeating decimal and cannot be written as p/q. It is irrational.
**The others are all rational:** 3/4 is a fraction, √4 = 2 is a whole number, and −7 is an integer.
Keep practising Unit 1B2: Algebraic Limits and Continuity
Browse all Unit 1B2: Algebraic Limits and Continuity questions for AP Calculus AB, or explore more Mathematics topics.
Related questions
The decimal expansion of $\dfrac{257}{2^3 \cdot 5^4}$ terminates after how many decimal plThe product of the HCF and LCM of 6 and 20 is:Which of the following is an irrational number?The remainder when $2^{100}$ is divided by 7 isHow many positive integers less than 1000 are divisible by neither 2 nor 5?The HCF of two consecutive positive integers isIf $a = 2^3 \cdot 3^4 \cdot 5^2$ and $b = 2^4 \cdot 3^2 \cdot 7$, then $\dfrac{\text{LCM}(The smallest positive integer that is divisible by every integer from 1 to 10 is