Proving Trigonometric Identities Calculator • Full & Extended

Always begin your work on the more complex or expanded side of the equation. It is much easier to simplify an expression than it is to build one up from scratch. 2. Use Common Denominators

If your expression contains two or more fractions, find a common denominator and combine them into a single fraction. This often reveals a Pythagorean identity in the numerator. 3. Convert to Sine and Cosine Proving Trigonometric Identities Calculator

A reliable "last resort" is to rewrite every term using only . For example: 4. Apply Algebraic Techniques Always begin your work on the more complex