Locate $\sqrt{5}$ and $-\sqrt{5}$ on number line.

Important Questions on Real Numbers

MEDIUM

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>EXERCISE>Q 6

Find the value of $\sqrt{7}$ up to six decimal places by long division method.

EASY

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>EXERCISE>Q 9

Every rational number is a real number.

EASY

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>EXERCISE>Q 9

Every real number need not be a rational number

EASY

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>EXERCISE>Q 9

$\sqrt{n}$ is not irrational if $n$ is a perfect square.

MEDIUM

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>EXERCISE>Q 1

Visualise $2.874$ on the number line, using successive magnification.

MEDIUM

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>Do This>Q (i)

If $\frac{1}{2\sqrt{3}}=\frac{\sqrt{k}}{6}$, then find the value of $k$.

MEDIUM

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>Do This>Q (ii)

If the rationalising factor of the denominator of $\frac{3}{\sqrt{5}}=\frac{3\sqrt{k}}{5}$, then find the value of $k$.

EASY

9th Telangana Board

IMPORTANT

Mathematics Class 9>Chapter 1 - Real Numbers>Do This>Q (iii)

If the smallest rationalising factor of the denominator of $\frac{1}{\sqrt{8}}=\frac{\sqrt{2}}{k}$, then find the value of $k$.