Report copyright - eishinsha.comeishinsha.com/content/files/kaitou/2008/a202.pdf · 2016-06-23 · =2sinx —4sin x cosx — 2cosx sinx cosx = 3' (1) 3 (2) V = (1—2COSX + COS2X) dc — 2cosx + cos2x)
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