Find (lt_{(x,y) rightarrow( infty,0)}( sum_{a=1}^{x-1}sin( frac{a}{x}).sin(y)) )

Find (lt_{(x,y) rightarrow( infty,0)}( sum_{a=1}^{x-1}sin( frac{a}{x}

1.	Find (lt_{(x,y) rightarrow( infty,0)}( sum_{a=1}^{x-1}sin( frac{a}{x}).sin(y)) )
A.	1
B.	-1
C.
D.	Does not Exist
Answer» E.

Find (lt_{(x,y) rightarrow(0,0)} frac{sinh(x) times sinh(y)}{xy} )
Find (lt_{(x,y,z) rightarrow(0,0,0)} frac{sinh(x) times sinh(y) times sinh(z)}{xyz} )
Find (=lt_{(x,y) rightarrow (0,0)} frac{tan(y)}{x} )
Find (lt_{(x,y) rightarrow(0,0)} frac{sin(sin(y))}{x^n} )
Find (lt_{(x,y) rightarrow(0,0)} frac{sin(y)}{x^n} )
Find (lt_{(x,y) rightarrow (0,0)} frac{y^7x^{98}-x^{97}y^8+x^{105}}{xy^7+x^8} )
Find (lt_{(x,y) rightarrow( infty,0)}( sum_{a=1}^{x-1}sin( frac{a}{x}).sin(y)) )
Find (lt_{(x,y) rightarrow(0,0)} frac{sin(y)}{x} )
Find (lt_{(x,y) rightarrow(0,0)} frac{x^3+3xy^2-xy^2}{x^2+xy} )
Find (lt_{(x,y) rightarrow(0,1)} frac{x+y-1}{ sqrt{x+y}-1} )