Question

calculati tinand cont de paranteze si de ordinea efectuarii operatiilor 1supra2÷(1supra5-1supra10)-2inyregi 1supra3•3supra14 va roooog

Answer 1

1/2:(1/5-1/10)-2  1/3×3/14  =
=1/2:(2-1)/10-7/3×3/14  =
=1/2:1/10-1/2  =
=1/2×10-1/2  =
=5-1/2  =
=(10-1)/2=
=9/2