All Students Take Calculus is a mnemonic for the sign of each trigonometric functions in each quadrant of the plane. The letters ASTC signify which of the trigonometric functions are positive, starting in the top right 1st quadrant and moving counterclockwise through quadrants 2 to 4.

Trigonometry is hard because it deliberately makes difficult what is at heart easy. We know trig is about right triangles, and right triangles are about the Pythagorean Theorem. About the simplest math we can write is When this is the Pythagorean Theorem, we're referring to a right isosceles triangle.

0:23 9:47 The Easiest Way to Memorize the Trigonometric Unit Circle - YouTube YouTube Start of suggested clip End of suggested clip For each angle on this unit circle we are constructing a triangle by drawing a line from this pointMoreFor each angle on this unit circle we are constructing a triangle by drawing a line from this point straight down to the x-axis. The hypotenuse of this triangle is the radius of the circle.

7 Easy Steps to Learn Trigonometry Study all the basics of trigonometric angles. Study right-angle triangle concepts. Pythagoras theorem. Sine rule and Cosine rule. List all the important identities of trigonometry. Remember the trigonometry table. Be thorough with the trigonometric formulas.

Practice! Practice! Proving trigonometric function becomes a piece of cake after you have conquered a massive number questions and expose yourself to all the different varieties of questions. There are no hard and fast rule to handling O-level trigonometry proving questions since every question is like a puzzle.

Trigonometry is considered hard by students due to the following reasons: The memorization of formulas and values. Non-linear functions. Angle measurement in Radians/Degree.