explain sub-question 1 and 2---Here is the extraction of the content from the image: **Problem Number and Points:** 22. (本小题 10 分) **Question Stem:** 如图，在平面直角坐标系中，已知点 A(0,a), B(b,-a), C(-1,5), 其中 a, b 满足 (√a)² = 2, b = ³√-27. **(1) Sub-question 1:** 请直接写出点 A 和点 B 的坐标, 并求 △ABC 的面积; **(2) Sub-question 2:** 在x轴上存在一点 P, 使得 △COP 的面积与 △ABC 的面积相等, 求点 P 的坐标. **Mathematical Formulas/Conditions:** (√a)² = 2 b = ³√-27 **Chart/Diagram Description:** * **Type:** Cartesian Coordinate System with a triangle. * **Main Elements:** * X-axis (labeled 'x') and Y-axis (labeled 'y') intersecting perpendicularly at the origin O. Arrows indicate positive directions. * Origin is labeled 'O'. * Point A is plotted on the positive Y-axis. * Point B is plotted in the third quadrant (left and below the origin). * Point C is plotted in the second quadrant (left and above the origin). * Lines connect points A, B, and C, forming triangle △ABC. * Points A, B, C, and O are labeled.