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Exercise

$\sin\left(18\right)\cos\left(80\right)-\sin\left(10\right)\sin\left(80\right)$

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Final answer to the exercise

$\frac{\sin\left(98\right)-\sin\left(62\right)-2\sin\left(10\right)\sin\left(80\right)}{2}$

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Similar Questions Solved

$\left(\sin\left(x\right)+\cos\left(x\right)\right)^2$

$1+cot^2x$

$tan\left(x\right)csc\left(x\right)$

$\tan\left(x\right)\csc\left(x\right)$

$\frac{2+\tan^2\left(x\right)}{\sec^2\left(x\right)}-1$

$csc^2x-1$

Main Topic: Simplify Trigonometric Expressions

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.

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