👉 The term "counterinvective" is a phrase used in mathematics to describe an operation or function that reverses another operation or function. In other words, it's like saying that if you have one side of a triangle and you want to find its opposite side, then you need to reverse the order of the operations to get the correct answer. For example, if you were given a line segment AB and asked to find the length of AC, you would first measure AC in terms of a different