(1)计算:-9+5×(-6)-(-4)2÷(-8)(2)计算:tan60°?sin60°-cot30°?tan45°
(1)计算:-9+5×(-6)-(-4)2÷(-8)(2)计算:tan60°?sin60°-cot30°?tan45°....
(1)计算:-9+5×(-6)-(-4)2÷(-8)(2)计算:tan60°?sin60°-cot30°?tan45°.
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