Question

1-1supra 2:( 1- 1 supra 2) : [- 1supra 5+(-4)×( 1supra 3+ 1supra 3 :(-2) ) ] +1supra 13

Answer 1

Explicație pas cu pas:

1-1/2:1/2:[-1/5+(-4/3)+(-1/6)]+1/13=1-1:[-1/5-9/6]+1/13=1-1:[(-6-45)/30]+1/13=1-1:-(51/30)+1/13=1+[(51×13)+30]/30×13=1+(663+30)/390=(390+693)/390=1083/390=361/130