BY Team Aakash Byjus

Use These Tricks to Memorize Trigonometry Formulas

Trigonometry is all about the relation between the sides and angles of the triangle.

First, learn the fundamentals and concepts of triangles and their sides and angles.

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Use mnemonics to help remember trigonometric identities and the relationships between the various trigonometric functions.

The sine, cosine, and tangent ratios in a right triangle can be remembered by using code like, for instance, SOH-CAH-TOA in English:

Use phrases like ‘The Old Army Colonel And His Son Often Hiccup" (tangent, cosine, sine)

Draw three triangles pointing down, touching at a single point and label them as shown diagram.

The starting vertex equals one over the opposite vertex.

Example

Going either clockwise or counter-clockwise, the starting vertex equals the next vertex divided by the vertex after that.

Example

The starting corner equals the product of its two nearest Adjacent.

Example

The sum of the squares of the two items at the top of a triangle equals the square of the item at the bottom.

Example