(√2-3)(2√2+1)精确到0.01
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(√2-3)(2√2+1)精确到0.01(√2-3)(2√2+1)精确到0.01(√2-3)(2√2+1)精确到0.01(√2-3)(2√2+1)=2√2×√2+√2-6√2-3=4+√2-6√2-3
(√2-3)(2√2+1)精确到0.01
(√2-3)(2√2+1)精确到0.01
(√2-3)(2√2+1)精确到0.01
(√2-3)(2√2+1)
=2√2×√2+√2-6√2-3
=4+√2-6√2-3
=1-5√2
≈-6.07
=√2*2√2+√2-3*2√2-3
=4-5√2-3
=1-5√2
=1-5*1.414
=-6.07
(√2-3)(2√2+1)精确到0.01
1/4(2√ 3-π)结果精确到0.01
用四舍五入法,取近似数(1)3.0056(.精确到0.01);(2)9.386(.精确到十分位);(3)2013(.精确到百位);(4)0.56732(.精确到千分位);
√5×√2-√3(精确到千分位)3.499 5(精确到0.01);0.003 584(精确到千分位)
π-√2×√3 (精确到0.01)
2分之3+√2-π(精确到0.01)
√3+|(π/2)-三次根号9|(精确到0.01)
0.9541(精确到十分位); (2)2.5678(精确到0.01);
(2√12-√1/3)*√6 结果精确到0.01
√5+√3/2+1/7-兀怎么计算?精确到0.01
3.14-√2∕2+1/3(精确到0.01)
√5-1/2=(精确到0.001)
(-0.812)^3(精确到0.01)|1/2×(1-0.51^2)×6.5+1/3×(1+1.3^3)(精确到0.(-0.812)^3(精确到0.01)1/2×(1-0.51^2)×6.5+1/3×(1+1.3^3)(精确到0.01)
(1)0.6328精确到0.001 (2)7.9122精确到个位 (3)47155精确到百分位 和3.40*10的5次幂 精确到万位
47 155精确到百位,2 345 000精确到万位,3 404精确到百位,396.7精确到十位,..
1: 54810≈? (精确到百分位) 2: 5.1972≈? (精确到0.01) 3: 3.1: 54810≈? (精确到百分位)2: 5.1972≈? (精确到0.01)3: 3.86亿=? (科学计数法)
用四舍五入法,按括号内的要求,对下列各数取近似值(1)245.635(精确到0.1)(2)175.65(精确到个位)(3)12.004(精确到百位)(4)6.5378(精确到0.01)
用四舍五入法,按括号内的要求,对下列各数取近似值:(1)245.635(精确到0.1)(2)175.65(精确到个位)(3)12.004(精确到百位)(4)6.5378(精确到0.01)