Problem 60E: For the following exercises, find the limit of the function. 60. (x,y)(1,2)xlim Problem 61E: For the following exercises, find the limit of the function. 61. (x,y)(1,2)lim5x2yx2+y2 Problem 62E: For the following exercises, find the limit of the function. 62. Show that the... Problem 63E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 64E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 65E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 66E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 67E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 68E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 69E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 70E: For the following exercises, evaluate the limits at the indicated values of x and v. If the limit... Problem 71E: For the following exercises, evaluate the limits at the indicated values of x and v. If the limit... Problem 72E: For the following exercises, evaluate the limits at the indicated values of x and v. If the limit... Problem 73E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 74E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 75E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 76E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 77E: For the following exercises, evaluate the limits at the indicated values of x and y. If the limit... Problem 78E: For the following exercises, complete the statement. 78. A point ( x0,y0 ) in a plane region R is an... Problem 79E: For the following exercises, complete the statement. 79. A point (x0,y0)in a plane region R is... Problem 80E: For the following exercises, use algebraic techniques to evaluate the limit. 80. (x,y)(2,1)limxy1xy1 Problem 81E: For the following exercises, use algebraic techniques to evaluate the limit. 81.... Problem 82E: For the following exercises, use algebraic techniques to evaluate the limit. 82. (xy)(0,0)limx3y3xy Problem 83E: For the following exercises, use algebraic techniques to evaluate the limit. 83. (xy)(0,0)limx2xyxy Problem 84E: For the following exercises, evaluate the limits of the functions of three variables. 84.... Problem 85E: For the following exercises, evaluate the limits of the functions of three variables. 85.... Problem 86E: For the following exercises, evaluate the limit of the function by determining the value the... Problem 87E: For the following exercises, evaluate the limit of the function by determining the value the... Problem 88E: For the following exercises, evaluate the limit of the function by determining the value the... Problem 89E: For the following exercises, evaluate the limit of the function by determining the value the... Problem 90E: Discuss the continuity of the following functions. Find the largest region in the xy-plane in which... Problem 91E: Discuss the continuity of the following functions. Find the largest region in the xy-plane in which... Problem 92E: Discuss the continuity of the following functions. Find the largest region in the xy-plane in which... Problem 93E: Discuss the continuity of the following functions. Find the largest region in the xy-plane in which... Problem 94E: For the following exercises, determine the region in which the function is continuous. Explain your... Problem 95E: For the following exercises, determine the region in which the function is continuous. Explain your... Problem 96E: Show that the function approaches different values along two different paths.) 96.... Problem 97E: Show that the function approaches different values along two different paths.) 97. Determine whether... Problem 98E: Create a plot using graphing software to determine where the limit does not exist. Determine the... Problem 99E: Determine the region of the xy-plane in which the composite function g(x,y)=arctan(xy2x+y) is... Problem 100E: Determine the region of the xv-plane in which f(x. y) = In(x2+ y2- 1) as continuous. Use technology... Problem 101E: At what points in space g(x,y,z)=x2+y22z2 continuous? Problem 102E: At what points in space is g(x,y,z)=1x2+z21 continuous? Problem 103E: Show that (x,y)(0,0)lim1x2+y2 does not exist at (0, 0) by plotting the graph of the function. Problem 104E: [T] Evaluate (x,y)(0,0)limxy2x2+y2 by plotting the function using a CAS. Determine analytically the... Problem 105E: [T] a. Use a CAS to draw a contour map of z=9x2y2 b. What is the name of the geometric shape of the... Problem 106E: True or False: If we evaluate (x,y)(0,0)limf(x) along several paths and each time the limit is I we... Problem 107E: Use polar coordinates to find (xy)(0,0)limsin x 2+ y 2 x 2+ y 2You can also find the limit using... Problem 108E: Use polar coordinates to find urn (xy)(0,0)limcos(x2+y2) Problem 109E: Discuss the continuity of f(g(x. y)) where f(i) = 1/t and g(x. y) = 2x — 5y. Problem 110E: Given f(x. v) = x2-4y. find h0limf(x+h,y)f(x,y)h. Problem 111E: Given f(x,y)=x24y find h0limf(1+h,y)f(1,y)h format_list_bulleted