# Category: Intermediate Part-I

## MCQs Number System – 4

MCQs Mathematics covers the topic of the Number system for the preparation of Intermediate mathematics.

1. If $R$ is the set of real number, then product $R\times R$ is called

2. If a point $A$ of a coordinate plane corresponds to the ordered pair $(a, b)$, then $a$ and $b$ are called

3. Golden rule of fraction is that for $k\ne 0$, $\frac{a}{b} =$

4. Real part of $(x+iy)^n$ is

5. The set $\{1, -1\}$ possesses closure property w.r.t.

6. If $|x+5i|=3$ then $x$ is equal to

7. If $z=3-5i$ then $|z|^2$ is equal to

8. The geometrical plane on which coordinate system has been specified is called

9. Imaginary part of $(-2+3i)^2$ is equal to

10. Polar form of $1+i\sqrt{3}$ is