Question

Comparati nr: a=[(2,5+1,5-1,75):5+0,55]³;b=(2⅓+3½):7/12-[2,(3):1/3-3:0,3+1,5:(1/2)²]²

Answer 1

a=[(4-1,75)/5+0,55]³
a= (2,25+0,55)³
a=(2,8)³
a=(2 întregi 8/10)³
a=(2 întregi 4/5)³
a=(14/5)³
a=2744/125
a=21,952

b=(7/3+7/2)*12/7-[2 întregi 3/9*3-3:3/10+1/5:1/4]
b=(14/6+21/6)*12/7-(2 întregi 1/3-3*10/3+1/5*4)²
b=35/6*12/7-(7/3-10+4/5)²
b=10-(35/15-150/15+12/15)²
b=10-(-103/15)²
b=10+(103/15)²
b=10+103²/15²
b=15²*10/15²+103²/15²
b=(2250+10609)/225
b=12859/225
b=57,15(1)

=>a<b