The maximum value of the function is: 2 pi12.25The minimum value of the function is:pi/2-1-0.25On the interval (0, something/2), the function is: IncreasingDecreasingThe range of the function is:[-1, 1][-0.25, 2.25]All real numbers

Solution:
Given the trigonometric function:
[tex](x)=\frac{5}{4}\sin(x)+1[/tex]we have
1) The maximum value of the function is
[tex]\begin{gathered} \frac{5}{4}+1=\frac{9}{4} \\ \Rightarrow2.25 \end{gathered}[/tex]2) The minimum value of the function is
[tex]-0.25[/tex]3) On the interval (0, π/2), the function is
[tex]Increasing[/tex]4) The range of the function is
[tex][-0.25,\text{ 2.25\rbrack}[/tex]