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习题:已知tanα=2,求(sinα+cosα)/(sinα-cosα)的值下面对此题进行一题多解和多变的讨论,希望对大家的学习有所帮助.一、多解解法1:(化切为弦)由tanα=2可解得:
Exercises: Known tan α = 2, find the value of (sin α + cos α) / (sin α-cos α) The following questions on the subject of a multi-solution and changeable discussion, I hope everyone’s help. Solution 1: (cut into chords) By tan α = 2 Solvable: