(1 point) Find the limit of the function as (x, y) (0,0). Assume that polynomials, exponentials, logarithmic, and trigonometric functions are continuous. Hint: → sin(√√x² + y²) lim (x,y)>(0,0) 2 (Enter DNE if the limit does not exist.) f(x, y) sin(√√x² + y²) x² + y² sin t =