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1.

Which is larget $\sqrt{2}$ or $\sqrt[3]{3}$?


A) $\sqrt{2}$

B) $\sqrt[3]{3}$



2.

If $2^{x}=3^{y}=6^{-z}$, then $\left( \frac{1}{x}+\frac{1}{y}+\frac{1}{z}\right)$ is equal to?


A) 0

B) 1

C) 3/2

D) -1/2



3.

If $2^{x}=\sqrt[3]{32}$ , then x is equal to?.


A) 5

B) 3

C) 3/5

D) 5/3



4.

If  $3^{(x-y)}=27 $  and $3^{(x+y)}=243 $, then x is equal to?


A) 0

B) 2

C) 4

D) 6



5.

if abc= 1, then $\left(\frac{1}{1+a+b^{-1}}+\frac{1}{1+b+c^{-1}}+\frac{1}{1+c+a^{-1}}\right)=?$


A) 0

B) 1

C) 1/ab

D) ab



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