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The sine of $90$ equals $1$
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$\frac{27\sin\left(39\right)}{1}$
Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression (27sin(39))/sin(90). The sine of 90 equals 1. The sine of 39 equals \frac{73}{116}. Multiply 27 times \frac{73}{116}. Divide 16.99164 by 1.