Exponents Quiz 1

Question 1

Evaluate $${2401^{ - 1}} 	imes \dfrac{1}{{{{49}^{ - 2}}}} 	imes {729^{ - 3}} 	imes \dfrac{1}{{{{6561}^{ - 8}}}} $$

Accepted Answer

$$\dfrac{1}{3}$$

Answer

$$\dfrac{1}{9}$$

Answer

$$3$$

Answer

None of these

Question 2

Evaluate $${1024^{ - \frac{1}{5}}} 	imes \dfrac{1}{{{{32}^{ - 2}}}} 	imes {8^{ - 3}} 	imes \dfrac{1}{{{{16}^{ - 2}}}} $$

Accepted Answer

128

Answer

64

Answer

32

Answer

16

Question 3

Evaluate $$\left( {{a^{m + n}}} ight) 	imes \left( {{a^{2m - n}}} ight) 	imes \dfrac{1}{{\left( {{a^{ - 2m - 2n}}} ight)}} $$

Accepted Answer

$${a^{5m + n}}$$

Answer

$${a^{5m + 2n}}$$

Answer

$${a^{5m - n}}$$

Answer

None of these

Question 4

Evaluate $${1024^{ - \frac{1}{{10}}}} 	imes \dfrac{1}{{{{32}^{ - \frac{1}{5}}}}} 	imes {8^{ - \frac{1}{3}}} 	imes \dfrac{1}{{{{16}^{ - 2}}}} $$.

Accepted Answer

128

Answer

64

Answer

32

Answer

16

Question 5

Evaluate $${128^{ - \frac{1}{7}}} 	imes \dfrac{1}{{{{256}^{ - \frac{1}{4}}}}} 	imes {4096^{ - \frac{1}{3}}} 	imes \dfrac{1}{{{{1024}^{ - \frac{1}{2}}}}} $$

Accepted Answer

4

Answer

128

Answer

32

Answer

16