English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

If n is a natural number then n is

Advertisements
Advertisements

Question

If n is a natural number then `sqrt("n")` is

Options

  • always a natural number.

  • always an irrational number.

  • always a rational number

  • may be rational or irrational

MCQ
Advertisements

Solution

If n is a natural number then `sqrt("n")` is may be rational or irrational

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Real Numbers - Exercise 2.9 [Page 74]

APPEARS IN

Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 2 Real Numbers
Exercise 2.9 | Q 1 | Page 74

RELATED QUESTIONS

Subtract the first rational number from the second in each of the following:

\[\frac{- 2}{11}, \frac{- 9}{11}\]

Subtract the first rational number from the second in each of the following:

\[\frac{- 8}{33}, \frac{- 7}{22}\]

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]

\[\frac{2}{3} + \frac{- 5}{6} + \frac{- 7}{9}\]

Simplify each of the following and write as a rational number of the form \[\frac{p}{q}:\]

\[\frac{5}{3} + \frac{3}{- 2} + \frac{- 7}{3} + 3\]

 


Simplify:

\[\left( - 5 \times \frac{2}{15} \right) - \left( - 6 \times \frac{2}{9} \right)\]

Divide:

\[\frac{- 7}{8} \text{by} \frac{- 21}{16}\]

Find the value and express as a rational number in standard form:

\[\frac{- 40}{99} \div ( - 20)\]

The table shows the portion of some common materials that are recycled.

Material Recycled
Paper `5/11`
Aluminium cans `5/8`
Glass `2/5`
Scrap `3/4`
  1. Is the rational number expressing the amount of paper recycled more than `1/2` or less than `1/2`?
  2. Which items have a recycled amount less than `1/2`?
  3. Is the quantity of aluminium cans recycled more (or less) than half of the quantity of aluminium cans?
  4. Arrange the rate of recycling the materials from the greatest to the smallest.

Here is a table which gives the information about the total rainfall for several months compared to the average monthly rains of a town. Write each decimal in the form of rational number `p/q`.

Month Above/Below
normal (in cm)
May 2.6924
June 0.6096
July – 6.9088
August – 8.636

Write the rational number whose numerator and denominator are respectively as under:

5 – 39 and 54 – 6


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×