🤚By using your hand as a reference, you can easily memorize the sine and cosine values of common angles.

🧠This trick helps you quickly recall trigonometric values without the need for a calculator.

📐The angles 0°, 30°, 45°, 60°, and 90° are commonly used in trigonometry, and this trick makes it easier to remember their sine and cosine values.

🔢To calculate the sine and cosine values, count the number of fingers down from the thumb for sine and up from the thumb for cosine.

✋The square root of the number of fingers counted is divided by two to calculate the sine and cosine values.