Выполним операции по порядку: (3(2/5)^2) + (50^5)/(20^6)/(25/4)^3 = = (3 * 4/25) + (31250000000)/(20^6)/(625/64) = = 12/25 + (31250000000)/(20^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) = = 12/25 + (31250000000)/(5^6 * 2^6 * 625/64) ≈ ≈ 0,48 + 0,16 ≈ ≈ 0,64 Ответ: примерно 0,64.