求值 cos25/3π+tan(-15/4π)
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求值cos25/3π+tan(-15/4π)求值cos25/3π+tan(-15/4π)求值cos25/3π+tan(-15/4π)cos25/3π+tan(-15/4π)=cos1/3π+tan1/
求值 cos25/3π+tan(-15/4π)
求值 cos25/3π+tan(-15/4π)
求值 cos25/3π+tan(-15/4π)
cos25/3π+tan(-15/4π)
= cos1/3π+tan1/4π
=1/2+1
=1.5
求值 cos25/3π+tan(-15/4π)
求值 cos25/3π+tan(-15/4π)
求值:sin4派/3×cos25派/6×tan(-3派/4)
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sin25π/6+cos25π/3+tan(-25π/4)
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sin25π/6 + cos25π/3 + tan(-25π/4)这题怎么算?
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sin25π/4+cos25π/3+tan(-25π/4)=
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先估计结果的符号,再进行计算sin25π/6+cos25π/3+tan(- 25π/4)