Question

(3-1/3)²+(2-1/2)² ⁹⁰-(1-1/2)² Dau coroana​

Answer 1

Răspuns:

64/9

Explicație pas cu pas:

(3 - 1/3)² + (2 - 1/2)² - (1 - 1/2)² =

(9/3 - 1/3)² + (4/2 - 1/2)² - (2/2 - 1/2)² =

[(9 - 1)/3]² + [(4 - 1)/2]² - [(2 - 1)/2]² =

(8/3)² + (3/2)² - (3/2)² =

64/9 + 9/4  - 9/4 =

64/9 

==pav38==