$q,11.$ If $x>3,$ which of the following is equivalent to $\frac{1}{\frac{1}{x+2}+\frac{1}{x+3}}?$

$($A$)\frac{2x+5}{x^2+5x+6}$

$($B$)\frac{x^2+5x+6}{2x+5}$

$($C$)2x+5$

$($D$)x^2+5x+6$

$($E$)$ None of these

The function $f(x)=ln(sinx)$ is defined for all x in which of the following intervals?

$($A

$(D)\frac{3}{2}x\frac{5}{2}$

$(E)\frac{3}{2}0$

$(B)0x<mi></mi>$

$(C)\frac{3}{2}$

$(D)\frac{3}{2}x\frac{5}{2}$

$(E)\frac{3}{2}$