Question

EXERCIȚIUL 9!!! VĂ ROG!!! URGENT!!! COROANĂ+PUNCTE!!!

Answer 1

Răspuns:

a)2^3×4^2×8^2÷16^3-3^3×9^2×27^2÷81^3=

4^2=(2^2)^2=2^4; 8^2=(2^3)^2=2^6

16^3=(2^4)^3=2^12; 9^2=(3^2)^2=3^4

27^2=(3^3)^2=3^6; 81^3=(3^4)^3=3^12

2^3×2^4×2^6÷2^12-3^3×3^4×3^6÷3^12=

2^13÷2^12-3^13÷3^12=2^1-3^1=2-3= -1

b)100×[9+8×(1954-1895)]=100×(9+8×59)=100×(9+42)=100×51=5100

c){[(3^5÷3^4+576÷64)÷3+529÷23]÷27}^2022-1=

{[(3+9)÷3+23]÷27}^2022-1=

[(12÷3+23)÷27]^2022-1=(27÷27)^2022-1=1^2022-1=1-1=0

^ inseamna la puterea