Answer:
-.125
Step-by-step explanation:
5/8 + 3/4 solve
2/3 - 5/6 solve
then subtract your numbers
First find the critical points of <em>f</em> :



so the point (1, 0) is the only critical point, at which we have

Next check for critical points along the boundary, which can be found by converting to polar coordinates:

Find the critical points of <em>g</em> :



where <em>n</em> is any integer. We get 4 critical points in the interval [0, 2π) at




So <em>f</em> has a minimum of -7 and a maximum of 299.
Answer:
im not sure if this answer is correct but i think its 22