Chapter One "Solving the Triangle" ppt-the five compulsory courseware of the Jiangsu Education Edition

The compulsory version of Chapter 5 of the Soviet Education Edition, Chapter 1 "Solving Triangles" ppt 2. When a, b, and A are known, the number of solutions: (1) If the known A is an obtuse angle or a right angle, then a> b is required. There is a solution. At this time, when calculating B, only the value of the acute angle can be taken, so there is only one solution

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