Очень просто.
(3V5)^2 = 3^2 * (V5)^2 = 9*5 = 45
Вся дробь
90/(3V5)^2 = 90/45 = 2
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Verified answer
Очень просто.
(3V5)^2 = 3^2 * (V5)^2 = 9*5 = 45
Вся дробь
90/(3V5)^2 = 90/45 = 2