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(2 / 3) ^ - 3 + (2 / 5) ^ - 2 + (4 / 11) ^ - 1?

(2 / 3) ^ - 3 + (2 / 5) ^ - 2 + (4 / 11) ^ - 1.

En resumen

Propiedades : (a / b) ^ n = (a ^ n) / (b ^ n) (a / b) ^ - n = (b / a) ^ n → (2 / 3) ^ - 3 + (2 / 5) ^ - 2 + (4 / 11) ^ - 1 = (3 / 2)³ + (5 / 2)² + (11 / 4) = (27 / 8) + (25 / 4) + (11 / 4) = (27 / 8) + (36 / 4) = (27 / 8) + 9 = (27 + 72) / 8 = 99 / 8 = 12, 375.

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Cristianben10
7

Propiedades :

(a / b) ^ n = (a ^ n) / (b ^ n)

(a / b) ^ - n = (b / a) ^ n

→ (2 / 3) ^ - 3 + (2 / 5) ^ - 2 + (4 / 11) ^ - 1 = (3 / 2)³ + (5 / 2)² + (11 / 4) = (27 / 8) + (25 / 4) + (11 / 4) = (27 / 8) + (36 / 4) = (27 / 8) + 9 = (27 + 72) / 8 = 99 / 8 = 12, 375.