Mathematics, 28.07.2021 06:30, alyssa0888

Cho x2 + y2 = 1. Tính giá trị của biểu thức: M = 2x4 + 3x2y2 + y4 + y2.

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Cho x2 + y2 = 1. Tính giá trị của biểu thức: M = 2x4 + 3x2y2 + y4 + y2....