11. WHAT IS "THE DISCRIMINANT" AND WHAT DOES IT TELL US??? (A-level Maths, Pure Maths Video 11)

Описание к видео 11. WHAT IS "THE DISCRIMINANT" AND WHAT DOES IT TELL US??? (A-level Maths, Pure Maths Video 11)

This is Video 11 in my A-level Pure Mathematics series of videos. In this video, we define what the "discriminant" of a quadratic expression is, and we explain its significance in determining the number of roots that such quadratic has.

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