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$1+\cos\left(90\right)$
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Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression sin(90)+cos(90). The sine of 90 equals . The cosine of 90 equals . Add the values 1 and 0.
Final Answer
$1$
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Simplification of trigonometric expressions consists of rewriting an expression with trigonometric functions in a simpler form. To perform this task, we usually use the most common trigonometric identities, and some algebra.