7. Use polar coordinates to find the limit. [If (r, 0) are polar coordinates of the point (x, y) withr2 0, note that r →0* as (x, y) → (0, 0).] (If an answer does not exist, enter DNE.) xA + y6 lim...

Please solve both correctly in 20 minutes and get the thumbs up please solve for both boxes


Extracted text: 7. Use polar coordinates to find the limit. [If (r, 0) are polar coordinates of the point (x, y) withr2 0, note that r →0* as (x, y) → (0, 0).] (If an answer does not exist, enter DNE.) xA + y6 lim (x, y)(0, 0) x2 + y2 8. Use polar coordinates to find the limit. [If (r, 0) are polar coordinates of the point (x, y) with r 2 0, note that r→ 0* as (x, y) → (0, 0).] (If an answer does not exist, enter DNE.) 7e-x2 - y x² + y2 - 7 lim (x, y) - (0, 0)