Question

calcule a expressão numérica
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Answer 1

Resposta: -71/9

(3/5)-². (5/2)-¹ - (4/3) -² . (1/4)-²

(3/5)². 2/5 - (4/3) -² . (1/4)-²

(3/5)². 2/5 - (4/3 . 1/4)-²

(3/5)². 2/5 - (1/3)-²

25/9. 2/5 - (1/3)-²

5/9. 2 - (1/3)-²

5/9. 2 - 3²

10/9 - 3²

10/9 - 9

-71/9