Fortune Telling Collection - Fortune-telling birth date - (1) Let the original proposition be "four sides of a square are equal", rewrite the original proposition in the form of "if P, then Q", write its negative proposition, and then quote it.

(1) Let the original proposition be "four sides of a square are equal", rewrite the original proposition in the form of "if P, then Q", write its negative proposition, and then quote it.

(1) The original proposition can be rewritten as: If a quadrilateral is a square, its four sides are equal. (true question)

There is no proposition that if a quadrilateral is not a square, then its four sides are not equal. (false proposition)

(2) The inequality can be reduced to: 12x2+(m? 2)x