[微積] 三角函數角度有帶n的幾何數列
如上圖,n1P/c和T^2是常數,要算的只有R^n*cos(a+nb)的部分
請問這個幾何數列要如何求解?
有正確解答者願給予1000P獎勵
感謝!
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※ 編輯: jimmy6247 (36.227.142.100), 11/10/2016 10:37:51
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