Of course, what Dodgson noticed was

Of course, what Dodgson noticed was that, if det A was
unknown, Jacobi’s Theorem provided a useful algorithm for
finding it. For example, let

ผลลัพธ์ (อังกฤษ) 2:

Of course, what Dodgson was noticed that, if det A was
Unknown, Jacobi's Theorem provided a useful algorithm for
Finding it. For example, let