Simplify a trig expression by multiplying by the LCD

The video tutorial covers simplifying complex fractions by using the least common denominator (LCD). It demonstrates how to handle fractions with multiple denominators and explains the process of rewriting fractions in terms of sines and cosines to simplify them further. The tutorial also explores the use of trigonometric identities, such as sine squared plus cosine squared, to simplify expressions. The session concludes with instructions for group work.

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