...

"From the perspective of an equation, whether negative real numbers can be squared is whether there is a solution to equation X2a=0(a0), and then it can be attributed to whether there is a solution to equation X1=0!"

"We hope that the addition and multiplication operations can still be performed between the number i and the real number like the real number, and we hope that the addition and multiplication are both satisfactory... So, after the real number system is expanded, what are the new number systems composed of?"

"We call numbers like abi(a,b∈R) complex numbers, where i is called imaginary units, and only composed of all complex numbers..."

Lao Mo Cao said a lot, opened the thermos cup, and took a sip of tea.

Then he turned around and wrote in chalk on the blackboard.

Wu Yurui was confused when he heard this. Although these words were all in the book, Cao Laomo was just reading the script and she could read it herself, the problem was that she couldn't understand it when combined.

I think she was also considered to be average in junior high school mathematics, but who knew that when she arrived in high school, she could not even get 60% of math.

Turning his head and looking, Wu Yurui was stunned.

this……

Do you really dare to play with your phone?

[You eat spicy strips in mathematics class and integrate flat vectors and their applications!]

[You draw comics in math class and integrate plural numbers!]

[You play with your mobile phone in math class and integrate functions!]
Chapter completed!