总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 1/(sqrt(3)-sqrt(2))+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3)) 的值.
题型:数学计算
解:
1/(sqrt(3)-sqrt(2))+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3))
=1/(sqrt3-sqrt(2))+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3))
=1/(sqrt3-sqrt2)+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3))
=1/0.317837+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3))
=1/0.317837+3/(sqrt2-sqrt(5))+2/(sqrt(5)+sqrt(3))
=1/0.317837+3/(sqrt2-sqrt5)+2/(sqrt(5)+sqrt(3))
=1/0.317837+3/(-0.821854)+2/(sqrt(5)+sqrt(3))
=1/0.317837+3/(-0.821854)+2/(sqrt5+sqrt(3))
=1/0.317837+3/(-0.821854)+2/(sqrt5+sqrt3)
=1/0.317837+3/(-0.821854)+2/3.968119
=3.146267+3/(-0.821854)+2/3.968119
=3.146267+(-3.650283)+2/3.968119
=3.146267+-3.650283+0.504017
=-0.504016+0.504017
=0.000001 答案:1/(sqrt(3)-sqrt(2))+3/(sqrt(2)-sqrt(5))+2/(sqrt(5)+sqrt(3))=0.000001你的问题在这里没有得到解决?请到 热门难题 里面看看吧!