How to simplify a trigonometric expression

The video tutorial explains how to handle subtraction problems by rewriting terms in terms of sines and cosines. It covers converting trigonometric functions like cosecant and cotangent, combining fractions with the same denominator, and using Pythagorean identities to simplify expressions. The tutorial emphasizes understanding the identity 1 - cosine squared equals sine squared and demonstrates simplifying expressions using division properties.

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