(◕‿◕✿) 新年進步 The x-intercept is 3, so when x = 3, y = 0, then we have 0 = a + log_b (3) ...[1] The curve passes...
...area means you just need to add all area of the faces, much easy right? So you can don't use any of formula, just work for a long time to find the area of each...