31,37 or),nof25-26is continuous.25. g(t) = 1² + √t, f(x, y) = 2x + 3y - 61 - xy1 + x²y²26. g(t) = 1 + ln t, f(x, y) =27-28 Graph the function and observe where it is discontinu-ous. Then use the formula to explain what you have observed.27. f(x, y) = ¹/(x-y)11-x² - y²=the set of points at which hxy1 + e*-yel 29-38 Determine the set of points at which the function iscontinuous.29. F(x, y)28. f(x, y)x²y³37. f(x, y) = 2x² + y²f1 + x² + y²31. F(x, y)1 - x² - y²33. G(x, y) = √√x + √1 − x² − y²POTlentos or indi sergab es30. F(x, y) = cos √1 + x - y34. G(x, y) = ln(1 + x − y)35. f(x, y, z) = arcsin(x2 + y2 + z^)36. ƒ(x, y, z) = √y — x² ln z=32. H(x, y)qat box a bogastro14.3 Partial Derivativesnodw nuitsau=if (x, y) = (0, 0)if (x, y) = (0, 0)et + exexy − 141. lim42. At thandf(xCO43. Gr44.454On a hot day, extreme humiis, whereas in very dry aireter indicates. The National

el 29-38 Determine the set of points at which the function is continuous. 29. F(x, y) = xy 1 + e*- 1 + x² + y² 31. F(x, y) = 1 + x² - y² - .2..3 30. F(x, y) = cos √1 + x - y S-bas S 33. G(x, y) = √√x + √√1 − x² − y² - 34. G(x, y) = ln(1 + x - y) 35. f(x, y, z) = arcsin(x2 + y2 + z^) 36. f(x, y, z) = √√y - x² In z 37. f(x, y) = 2x² + y² 278 1 32. H(x, y) = if (x, y) = (0, 0) if (x, y) = (0, 0) et + ey exy − 1 44. 45 4