C-01-Q033mediumsingle_mcq

Which of the following is irrational?

a $\sqrt{25}$
b $\sqrt{2}$
c $\sqrt{49}$
d $\sqrt{100}$

ব্যাখ্যা

$\sqrt{2}$ is not the square root of a perfect square, so it cannot be expressed as a ratio of integers and is irrational. The others, $\sqrt{25}=5$ , $\sqrt{49}=7$ , $\sqrt{100}=10$ , are whole numbers.

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Real Numbers — সব প্রশ্ন দেখুন (149টি) →

Which of the following is irrational?

\sqrt{25}

\sqrt{2}

\sqrt{49}

\sqrt{100}