What is the difference between a trigonometric equation that is an identity and a trigonometric equation that is not an identity? Provide an example to clarify.
An identity is an equality relationship between two mathematical expressions. For example, in basic algebra students are expected to master various algebraic factoring identities such as
a^2 - b^2 = (a - b)(a + b)
In trigonometry, trigonometric identities are equations involving trigonometric ...
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