# simplify trigonometric expression

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(See attached file for full problem description)

Use an identity to write each expression as a single trigonometric function value or as a single number.

2* tan15 /(1 - (tan15)^2)

https://brainmass.com/math/basic-algebra/simplify-trigonometric-expression-83557

#### Solution Summary

The solution explains how to simplify the trigonometric expression to a single function or number using the trigonometric identity, such as half angle formula, double angle formula.

$2.49