Question

数学问题1：化简（「11+5*「7+4*「6）/（7+「77+「66+「42）

Answer 1

1,"^0.5"表示开方,（「11+5*「7+4*「6）/（7+「77+「66+「42）=

[(11^0.5+7^0.5)+4*(7^0.5+6*0.5)]/[(7^0.5+6^0.5)(7^0.5+11^0.5)]=

4/(7^0.5+11^0.5)+1/(7^0.5+6^0.5)=11^0.5-7^0.5+7^0.5-6*0.5=11^0.5-6^0.5

2,（「6+「5）^6+（「6-「5）^6=10582(用立方和公式求);(「6-「5）^6