Natali Belska
Просветленный
(36219)
1 год назад
V(61^2 - x^2) + V(60^2 - x^2) = 11
V(61^2 - x^2) = 11 - V(60^2 - x^2)
61^2 - x^2 = 121 - 22*V(60^2 - x^2) + 60^2 - x^2
61^2 - 60^2 = 121 - 22*V(60^2 - x^2)
(61+60)(61-60) = 121 - 22*V(60^2 - x^2)
121 = 121 - 22*V(60^2 - x^2)
22*V(60^2 - x^2) = 0
x^2 = 60
x1 = - 60; x2 = 60