Exponents and Powers MCQs with Answers

Past Paper MCQ

If $(7^a)(7^b) = (7^c)(7^d)$, what is $d$ in terms of $a$, $b$, and $c$?

• A.$a + b - c$
• B.$a + b + c$
• C.$a - b + c$
• D.$c - a - b$

What is $X^0$ equal to?

• A.$X$
• B.$0$
• C.$1$
• D.Undefined

If $\omega$ is the complex cube root of unity, then $\omega^3 =$

• A.$0$
• B.$\omega$
• C.$1$
• D.$\omega^2$

Past Paper MCQ

Which of the following is equal to $3.14 \times 10^6$?

• A.$3140000$
• B.$314000$
• C.$31400$
• D.$3140$

Simplify $(3^8 \times 3^9)^{10} =$ _?

• A.$3^{720}$
• B.$3^{80}$
• C.$3^{170}$
• D.$3^{27}$

What is the value of $9 \times 9 \times 9 \times 9$?

• A.$6561$
• B.$59049$
• C.$729$
• D.$531441$

The value of $3 \times 10^1 + 4 \times 10^0$ is equal to _?

• A.$34$
• B.$30$
• C.$304$
• D.$43$

The value of $\left[\left(\frac{2}{13}\right)^6 + \left(\frac{2}{13}\right)^3\right]^3 \times \left(\frac{2}{13}\right)^{-9}$ is _?

• A.$1$
• B.$\frac{2}{13}$
• C.$\left(\frac{2}{13}\right)^3$
• D.$\left(\frac{2}{13}\right)^9$

If $78.36 = 78.36^{xy}$, then which of the following is correct?

• A.$x = 1$ and $y = 1$
• B.$x = 0$ and $y = 1$
• C.$x = 1$ and $y = 0$
• D.$xy = 0$

What is the value of $j^{105}$?

• A.$j$
• B.$-1$
• C.$1$
• D.$-j$