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sin29/6π+COS(-29/3π)+tan(-25/4π)答案拜托了各位
人气:179 ℃ 时间:2020-05-11 14:57:20
解答
=sin(24/6+5/6)π+cos(-30/3+1/3)π+tan(-24/4-1/4)π =sin(5/6π)+cos1/3π-tan1/4π =1/2+1/2-1 =0
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