根号5+三次根号5-5.021(精确到0.01)和根号7+3根号3—π+1/4(保留4个有效数字)注:

问题描述:

根号5+三次根号5-5.021(精确到0.01)和根号7+3根号3—π+1/4(保留4个有效数字)注:

根号5+三次根号5-5.021
=2.236+1.710-5.021
=-1.08
根号7+3根号3—π+1/4
=2.646+3×1.732-3.142+0.25
=4.950