Question

5. Efectuaţi:
a) [7 (14-2-7): 21²;
ob) (10²-82): 6:2 +12003;
c) [17 (25-8-3) 12001 - 15]. 2³-2²-3;
0
d) [(9²-24-5): 1+5°: (5²)4] 2²;
.
e) {[(169: 13-2³): 5+ (7.23-2-3): 5+2³]: 19+5}-2³-24-3;
1) (332:32 +2². 225-2003): (27¹0 +8° - 324: 18²).

Ex 5 plss va rog

Answer 1

Explicație pas cu pas:

a. [7•(14-2•7):2]²=

[7•(14-14):2]²=

(7•0:2)²=

0

b.(10²-8²):6:2+1²⁰⁰³=

(100-64):6:2+1=

36:6:2+1=

6:2+1=

3+1=4

c. [17•(25-8•3)•1²⁰⁰¹-15]•2³-2²•3=

[17•(25-24)•1-15]•2³-4•3=

(17•1-15)•2³-12=

(17-15)•2³-12=

2•2³-12=

2⁴-12=

16-12=4

d.[(9²-2⁴•5):1+5⁹:(5²)⁴]•2²=

[(81-16•5):1+5⁹:5⁸]•2²=

[(81-80):1+5¹]•2²=

(1:1+5)•4=

6•4=24

e.{[(169:13-2³):5+(7•2³-2•3):5+2³]:19+5}•2³-2⁴•3=

{[(13-8):5+(7•8-6):5+8]:19+5}•2³-16•3=

[(5:5+50:5+8):19+5]•2³-48=

(19:19+5)•8-48=

6•8-48=

48-48=0

f. (3³²:3²+2²•2²⁵-2003⁰):(27¹⁰+8⁹-324:18²)=

(3³⁰+2²⁷-1):[(3³)¹⁰+(2³)⁹-18²:18²]=

(3³⁰+2²⁷-1):(3³⁰+2²⁷-1)=1