Question

13. Calculați respectând ordinea efectuării operațiilor:
a) {[3568 -(13²-5²). 23]: 64}²
b){[1050-1000:(100:5)]:8-(164-4-6²?)}¹⁰⁰;
​.

Answer 1

Răspuns:

{[3568-(13²-5²)×23]:64}²=

{[3568-(169-25)×23]:64}²=

[(3568-144×23):64]²=

[(3568-3312):64]²=

(256:64)²=

4²=16

{[1050-1000:(100:5)]:8-(164-4-6²)]}¹⁰⁰=

{[1050-1000:20):8-(164-4-36)]}¹⁰⁰=

[(1050-50):8-124)]¹⁰⁰=

(1000:8-124)¹⁰⁰=

(125-124)¹⁰⁰=

1¹⁰⁰=

1