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A \(\frac{4}{3}\)                                              

B \(\frac{4}{5}\)                                              

C  \(\frac{1}{3}\)                                              

D \(2\)

A 9

B 8

C 7

D 10

A  \(\frac{11}{2}\)                                              

B  \(\frac{5}{2}\)                                              

C  \(\frac{7}{2}\)                                              

D  \(\frac{9}{2}\)

A  2                                

B  \(\frac{3}{2}\)                                  

C \(\frac{3}{4}\)                                   

D 1

A 2         

B \(\frac{3}{2}\)                       

C \(\frac{3}{4}\)                                   

D 1

A \(P\le \frac{1}{2}\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)       

B  \(P\le \frac{1}{8}\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)                        

C \(P\le \frac{1}{4}\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)                   

D  \(P\le \frac{1}{16}\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)

A 1

B 2

C 3

D 4

A  \(T\le \frac{4}{a}+\frac{5}{b}+\frac{3}{c}.\)                    

B \(T\ge \frac{4}{a}+\frac{5}{b}+\frac{3}{c}.\)                    

C  \(T\le \frac{1}{a}+\frac{5}{4b}+\frac{3}{4c}.\)                

D  \(T\ge \frac{1}{a}+\frac{5}{4b}+\frac{3}{4c}.\)

A  \(T\ge 4\left( \frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a} \right)\)            

B  \(T\ge 2\left( \frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a} \right)\)

C  \(T\ge \frac{1}{2}.\left( \frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a} \right)\)                   

D  \(T\ge \frac{1}{4}.\left( \frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a} \right)\)

A

\(S\ge \frac{1}{4}.\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)                       

B  \(S\ge 4\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)             

C  \(S\ge \frac{1}{2}.\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)       

D \(S\ge 2\left( \frac{1}{a}+\frac{1}{b}+\frac{1}{c} \right)\)

A  \({{a}^{2}}+{{b}^{2}}+{{c}^{2}}\le 12\)                       

B  \({{a}^{2}}+{{b}^{2}}+{{c}^{2}}\ge 36\)                      

C  \({{a}^{2}}+{{b}^{2}}+{{c}^{2}}\ge 12\)                      

D  \({{a}^{2}}+{{b}^{2}}+{{c}^{2}}\le 36\)

A \(a+b+c\le \sqrt{5}\)               

B \(a+2b+3c\le \sqrt{17}\)                     

C \(3a+2b+c\le \sqrt{35}\)                     

D \(a+3b+5c\le \sqrt{35}\)

A  \(0<A<2\)                              

B \(0\le A\le 2\)                          

C \(\sqrt{2}\le A\le 2\)                           

D  \(\sqrt{2}<A<2\)

A  \({{a}^{4}}+{{b}^{4}}\ge 2\)                         

B  \({{a}^{2}}+{{b}^{2}}\ge 2\)                         

C \({{a}^{4}}+{{b}^{4}}\ge 4\)              

D  \(ab\le 1\)

A  \({{x}^{4}}+{{y}^{4}}+{{z}^{4}}\ge 4\)        

B \({{x}^{4}}+{{y}^{4}}+{{z}^{4}}\ge \frac{16}{3}\)                 

C \({{x}^{4}}+{{y}^{4}}+{{z}^{4}}\ge \frac{4}{3}\)                 

D \({{x}^{4}}+{{y}^{4}}+{{z}^{4}}\ge \frac{23}{3}\)

A \(\dfrac{1331}{81}\)

B \(\frac{1331}{27}\)

C \(17\)                        

D \(\dfrac{17}{3}\)

A  \({{h}_{a}}+{{h}_{b}}+{{h}_{c}}\ge 9r\)                  

B  \({{h}_{a}}+{{h}_{b}}+{{h}_{c}}\ge r\)        

C

 \({{h}_{a}}+{{h}_{b}}+{{h}_{c}}\le 9r\)                   

D  \({{h}_{a}}+{{h}_{b}}+{{h}_{c}}\le r\)

A \(0<P<\frac{3}{2}\)                           

B  \(P>\frac{3}{2}\)                              

C  \(P\ge \frac{4}{3}\)                          

D  \(P\ge \frac{3}{2}\)

A 4

B 5

C 6

D 7

A 2

B 3

C 4

D \(\frac{17}{4}\)