问题
填空题
利用计算器计算sin29.5°-cos58°30″+tan52°30′=______．（精确到0.01）
答案
原式≈（0.165）2-0.5225+1.303≈0.0272-0.5225+1.303≈0.81．
故答案为0.81．
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利用计算器计算sin29.5°-cos58°30″+tan52°30′=______．（精确到0.01）
原式≈（0.165）2-0.5225+1.303≈0.0272-0.5225+1.303≈0.81．
故答案为0.81．
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