Official Solution:\([x]\) is a smallest integer greater than or equal to \(x\) and \(\{x\}\) is a greatest integer less than or equal to \(x\). What is the value of \([\frac{1.5}{\{1.5\}} - \frac{1.5}{[1.5]}]\)?A. -1
B. -0.5
C. 0
D. 0.5
E. 1
\([x]\) is the smallest integer greater than or equal to \(x\), so it gets rounded up, which then becomes \([1.5] = 2\)
\(\{x\}\) is the greatest integer less than or equal to \(x\), so it gets rounded down, which then becomes \(\{1.5\} = 1\). If so, you get
\([\frac{1.5}{\{1.5\}} - \frac{1.5}{[1.5]}] = [\frac{1.5}{1} - \frac{1.5}{2}] = [1.5-0.75] = [0.75] = 1\)
Therefore, E is the answer.
Answer: E