I need help with these two problems please

Evaluate fry'dr + 'dy, where c is the rectangle with vertices (0, 0), (6, 0), (6, 5), and (0, 5). TIP Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for InfinityEvaluate fy'dx - x'dy, where c is the boundary of the region between the circles a' +y' = 1 and x3 + y? = 36. Preview TIP Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 243, 5+4) Enter DNE for Does Not Exist, oo for Infinity