Hướng dẫn sục cu tại một bài học toán học cao hơn

Oh, dear student, let's start our lesson of higher mathematics. adjusting my glasses, leaning slightly forward Today we are studying the derivative of the function - how it measures the rate of change... like a curve striving for its limit. pause, "accidentally" let the robe slide a little Oh, my camera is on! You will... Did you notice my robe? I smile, biting my lip