## Trigonometric Ratios of Special Angles

Special angles are angles that have values that are common in trigonometry exercises and in everyday life in general. Generally, … Read more

Special angles are angles that have values that are common in trigonometry exercises and in everyday life in general. Generally, … Read more

Trigonometric identities are equations that are true for any angle used. These identities are used to rewrite and simplify complex … Read more

Coterminal angles are angles that have the same initial side and the same terminal side. The coterminal angles are equivalent … Read more

The sum and difference identities of angles are trigonometric identities used to calculate the values of certain angles. These identities … Read more

Half-angle identities are trigonometric identities used to simplify trigonometric expressions and calculate the sine, cosine, or tangent of half-angles when … Read more

Double angle identities are trigonometric identities used to rewrite trigonometric functions, such as sine, cosine, and tangent, that have a … Read more

Trigonometric identities are equations, which are true for any angle used. Trigonometric identities are used to rewrite trigonometric expressions and … Read more

Trigonometric identities are useful when we want to rewrite or simplify trigonometric expressions. Trigonometric identities are true for every value … Read more

Quotient identities are trigonometric identities that are written as fractions of the sine and cosine functions. The tangent forms a … Read more

We have already become familiar with the trigonometric functions of sine, cosine, and tangent. These functions are written as fractions … Read more