Chrome File Edit History Bookmarks Profiles Tab Window zoom Q . Tue Nov 14 7:17 PM Harmony G X o Watch Life X U integralsint X A Wilfred DIA X U User repor X U 1300F23W X C Solved We X My Drive - X = gh - Googl X Dashboard X C eclass.yorku.ca/pluginfile.php/5694278/mod_label/intro/1300F23WA3.pdf ABP * 0 Update : M Gmail YouTube Netflix Disney+ Prime Video C Crave Princess Movies My Drive OCAP U Eclass / Degree-Checklist Timetable Crowdmark Tutorial 10 SOSC1... 1300F23WA3.pdf 2 / 2 111% + 2. A rectangle ABCD is contained in the unit circle (circle centered at the origin with radius MATH 13 DO WHERETHE CALCULUS WITH 1). Suppose that we know the following: . the point A is the origin, (0, 0). . the point B lies on the x-axis with a positive x-coordinate. . the point C lies on the unit circle with a postive y-coordinate. 2 Find the point D that maximizes the area of the rectangle. 3. We have learned the definitions of concavity (up and down) for differentiable functions following Definition 4.6.1 in the textbook. In this question, we learn a new definition of concave-up (also known as convex) that applies to any function as long as the function is defined on an interval, not necessarily differentiable. An important question, then, would be " are these two definitions equivalent to each other for differentiable functions?" You are going to show that it is partially true. Let f be a function defined on an interval (a, b). We say that a function f is convex if for every a