3. (5%) What is the solution form of A(t) if
A'(t) = A²(t)- 1,and A(0) = 0.
(A) A(t) = a + be^ct
(B) A(t) = (a + be^ct)^-1
(C) A(t) = (at be^ct)^-1 + d
(D) None of the above

1. 題目解析題目要求找出微分方程 \...