Basic Trigonometric Identities
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quotient identity
_______ define tangent and cotangent in terms of sine and cosine.
trigonometric identity
_______ is an equation involving a trigonometric function that is true for all values of the variable.
Pythagorean identities
________ are formed using the Pythagorean Theorem and the unit circle. The identities define the relationship between sine and cosine, tangent and secant, and cotangent and cosecant.
reciprocal identities
________ are trigonometric identities defining cosecant, secant, and cotangent in terms of sine, cosine, and tangent.
symmetry identities
________ are trigonometric identities related to the symmetries of the unit circle.
