求和S=sin^2 1度+sin^2 2度+sin^2 3度+...+sin^2 88度+sin^2 89度
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求和S=sin^21度+sin^22度+sin^23度+...+sin^288度+sin^289度求和S=sin^21度+sin^22度+sin^23度+...+sin^288度+sin^289度求和
求和S=sin^2 1度+sin^2 2度+sin^2 3度+...+sin^2 88度+sin^2 89度
求和S=sin^2 1度+sin^2 2度+sin^2 3度+...+sin^2 88度+sin^2 89度
求和S=sin^2 1度+sin^2 2度+sin^2 3度+...+sin^2 88度+sin^2 89度
首位对应位置成对相加,结果为都1.例如sin^2 1度+sin^2 89度=1,sin^2 2度+sin^2 88度=1.所以结果为44.5.
求和S=sin^2 1度+sin^2 2度+sin^2 3度+...+sin^2 88度+sin^2 89度
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