Infinite nonrecurring decimals are called irrational numbers.

Infinite nonrecurring decimals are called irrational numbers.

This was a proposition, and it was a real proposition. First of all, it was an an irrational number without any number of decimal places. Furthermore, a proposition was a proposition that said (a certain is/called/for a certain), and a proposition divided into a real proposition and a false proposition. This was my understanding. I think you should check the meaning of the proposition in the book. After all, I haven't read it for a long time. Perhaps I have n' t memorized it clearly.

It's a proposition, and it's a real proposition. First of all, an infinite non-circulating decimal is an irrational number, and a proposition is a proposition if it's (so-and-so is/called/ for so-and-so). It's also a real proposition and a false proposition. This is my understanding. I think you should check the meaning of the proposition in the book. After all, I haven't seen it for a long time. Maybe I do n' t remember it clearly.

Quadrature of 4X-13X Square+9

4X^4-13x2+9=(x2-1)(4x2-9)1-14-9 quadratic divided into 1,4 constant term is divided into -1,-9 cross multiplication to get 1×(-9)+4×(-1)=-13(x2-1)(4x2-9) can continue to divide by using the formula (a2-b2)=(a+b)(a-b)...

4X^4-13x2+9=(x2-1)(4x2-9)1-14-9 quadratic term is divided into 1,4 constant term is divided into -1,-9 cross multiplication to get 1×(-9)+4×(-1)=-13(x2-1)(4x2-9) can continue to divide by using the formula (a2-b2)=(a+b)(a-b)...