y' * x^2 = 8;
y' = 8/x^2;
y = ∫(8/x^2)dx + C = -8/x + C.
При y = 9 x = 4:
9 = -8/4 + C = -2 + C;
C = 11.
y = -8/x + 11.
ответ: y = -8/x + 11.
y' * x^2 = 8;
y' = 8/x^2;
y = ∫(8/x^2)dx + C = -8/x + C.
При y = 9 x = 4:
9 = -8/4 + C = -2 + C;
C = 11.
y = -8/x + 11.
ответ: y = -8/x + 11.