csat-suneung 2006 Q1

csat-suneung · South-Korea · csat__math-humanities 2 marks Indices and Surds Evaluating Expressions Using Index Laws
What is the value of $5 ^ { \frac { 2 } { 3 } } \times 25 ^ { - \frac { 5 } { 6 } }$? [2 points]
(1) $\frac { 1 } { 25 }$
(2) $\frac { 1 } { 5 }$
(3) 1
(4) 5
(5) 25
What is the value of $5 ^ { \frac { 2 } { 3 } } \times 25 ^ { - \frac { 5 } { 6 } }$? [2 points]\\
(1) $\frac { 1 } { 25 }$\\
(2) $\frac { 1 } { 5 }$\\
(3) 1\\
(4) 5\\
(5) 25