Răspuns:
a) (7/3)⁹ : (7/3)⁶= (7/3)³ = 343/27
b)(5/13)²· (2·13/3·5)²: (2/5)²= (5/13)²·( 13/5)²·(2/5)²:(2/5)²= (5/13)²:(5/13)²·1=1·1=1
Explicație pas cu pas:
