Math 9th Chap 1 : Test Yourself - Maryam Publications

Math Chapter 1 : Test Yourself

1 / 11

$a(b+c-d)$ equals ___________.

A) $a(b+c+d)$

B) $ac+ab-ad$

C) $ab+ac+ad$

D) $ab-ac-ad$

2 / 11

$a^{r}\cdot a^{-s}\div a^{s}$ is _________.

A) $\frac{a^{r}}{a^{2s}}$

B) $a^{r-s}$

C) $a^{r+2s}$

D) $a^{r}\cdot a^{2s}$

3 / 11

$\sqrt[n]{ab}$ is equal to _________.

A) $(ab)^{n}$

B) $(ab)^{\frac{1}{n}}$

C) $\sqrt{ab}$

D) $n(ab)$

4 / 11

Which number is self-multiplicative inverse?

A) $-3$

B) $-1$

C) $3$

D) $0$

5 / 11

If $a<0$, then $\sqrt{a}$ is _________.

A) imaginary

B) integer

C) irrational

D) rational

6 / 11

If $a+b=a$, what is value of $b$?

A) $1$

B) $a$

C) $0$

D) $-1$

7 / 11

If $a\cdot b=1$, what is value of $b$?

A) $\frac{1}{b}$

B) $-1$

C) $\frac{1}{a}$

D) $1$

8 / 11

According to reflexive property: $y^{2}-17=$ ?

A) $-17-y^{2}$

B) $y^{2}-17$

C) $y^{2}+17$

D) $y-17$

9 / 11

If $a\cdot b=a$, what is value of $b$?

A) $-1$

B) $a$

C) $1$

D) $\frac{1}{a}$

10 / 11

If $a\cdot b=1$, what is $b$ called?

A) additive identity

B) multiplicative inverse of $a$

C) self-multiplicative inverse

D) multiplicative identity

11 / 11

Is commutative property does not hold with respect to _______?

A) addition

B) multiplication

C) both A and B

D) subtraction

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