中考数学初中三角函数计算题

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1、中考数学初中三角函数计算题三角函数值三角函数θ30°45°60°sinθcosθtanθ1（1）sin260°＋cos260(2)-tan450（3）cos45°－sin30°（4）sin2300+cos2300(5)tan45°－sin30°·cos60°(6)(7)2sin300－cos450(6)sin600cos600(8)2sin30°+3cos60°-4tan45°(9)cos30°sin45°+sin30°cos45°(10)(11)cos30°+sin45°（12）2sin300+3sin60

2、0－4tan450（13）tan300sin450+tan600cos450（14）(15)；（16）=________________（17）(18)（19）sin230°+cos245°+sin60°·tan45°；（20）+sin45°内部资料，请勿外传！9JWKffwvG#tYM*Jg&6a*CZ7H$dq8KqqfHVZFedswSyXTy#&QA9wkxFyeQ^!djs#XuyUP2kNXpRWXmA&UE9aQ@Gn8xp$R#͑Gx^Gjqv^$UE9wEwZ#Qc@UE%&qYp@

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