🎵 The ASTC Rule Song: Master the Trigonometric Circle! Struggling to remember which trig functions are positive in which quadrant? We’ve got you covered! 📐✨ Welcome to the English version of our hit educational math track! Memorizing the Trigonometric Circle and the **ASTC Rule** doesn't have to be a headache. Whether you're cramming for a math test, tackling pre-calculus, or just want to level up your trigonometry skills, this song breaks down the quadrants with a beat you won't forget. Drop the flashcards and turn up the volume. If you can memorize these lyrics, you'll never forget the Unit Circle again! **What you'll learn in this song:** * **Quadrant I (0° - 90°):** **A**ll functions are positive. * **Quadrant II (90° - 180°):** Only **S**ine is positive. * **Quadrant III (180° - 270°):** Only **T**angent is positive. * **Quadrant IV (270° - 360°):** Only **C**osine is positive. 💡 **Help us help other students!** If this song helped you ace your math homework, hit that ...