a/a^2-1√(a-1)^2/a^4(0<a<1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 05:22:19
a/a^2-1√(a-1)^2/a^4(0<a<1)
xRMO0+ tڭE0&5%$<{f' =/ ?.'mhIOڃ4iCmhjhHG" OW ı[āƅ\Պ6R fW**4eP4w-(n(OMC ,ߓBJ$Q"cJYTmK lϗ1Y(QPeP|I8a0LYuhYi&x4':9x`7qgqϰ3uG׋Y~]@<`y+PQ٭`%=ȩ;8e7+^4҃2:*gNc'eܡe?#g

a/a^2-1√(a-1)^2/a^4(0<a<1)
a/a^2-1√(a-1)^2/a^4(0<a<1)
 

a/a^2-1√(a-1)^2/a^4(0<a<1)
∵0<a<1
∴a-1

等于a+1分之1

看不清

原式=a/(a^2-1)*(1-a)/(a^2)=-1/a(a+1)

a/[﹙a+1﹚﹙a-1﹚]·﹙1-a﹚/a²
=﹣1/[a﹙a+1﹚]
=﹣1/﹙a²+a﹚]