MCQ
Square of $\big(\frac{-2}{3}\big)$ is:
- A$\frac{-2}{3}$
- B$\frac{2}{3}$
- C$\frac{-4}{9}$
- ✓$\frac{4}{9}$
✓
Answer
Correct option: D.
$\frac{4}{9}$
Square of $\frac{-2}{3}\text{ is }\big(\frac{-2}{3}\big)^{2}$
So, $\big(\frac{-2}{3}^{2}\big)=\big(\frac{-2}{3}\big)\times\big(\frac{-2}{3}\big)$
$=\frac{4}{9}$
[$\because$ multiplication of two rational number with same sign is always positive]
So, $\big(\frac{-2}{3}^{2}\big)=\big(\frac{-2}{3}\big)\times\big(\frac{-2}{3}\big)$
$=\frac{4}{9}$
[$\because$ multiplication of two rational number with same sign is always positive]
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Mark $(\checkmark)$ against the correct answer in the following:
$2\frac{2}{25}=?$
→$2\frac{2}{25}=?$
Which is greater number in the following?
Which of the following solid object has both vertical and horizontal cross - sections same?
Which of the following pairs is/are like terms?
(1) $x$$\quad$(2) $x^2$$\quad$(3) $3 x^3$$\quad$(4) $4 x^3$
→(1) $x$$\quad$(2) $x^2$$\quad$(3) $3 x^3$$\quad$(4) $4 x^3$
Mark against the correct answer in the following:
A garrison of $500$ men had provisions for $24$ days. However, a reinforcement of $300$ men arrived. The food will now last for:
→A garrison of $500$ men had provisions for $24$ days. However, a reinforcement of $300$ men arrived. The food will now last for:
Mark against the correct answer in the following: If $8(2x - 5) - 6(3x - 7) = 1,$ then $x =?$
→In a $\triangle\text{ABC}$ which of the given condition holds?
→Which of the following integers does not have sum -3?
In the standard form of a rational number, the common factor of numerator and denominator is always:
The order of rotational symmetry in the Fig given below is:
