Question

Se dau nr: a={80-[80-(80-78)]}:2 si b=1+2+3+4+............+50.Sa se compare numerele a si b

Answer 1

a=(80-(80-(80-78))):2=
a=(80-(80-2)):2=
a=(80-78):2
a=2:2
a=1

b=1+2+3+4+.....+50=(50x51):2=2550:2=1275

a este mai mic decat b

Answer 2

a={80-[80-(80-78)]}:2= [80-(80-2)]:2= (80-78):2= 2:2 = 1
b=1+2+3+4+............+50= (50×51)/2 = 25×51 = 1275
a<b