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Daniel [21]
3 years ago
7

Write the expression as either the sine, cosine, or tangent of a single angle.

Mathematics
2 answers:
iris [78.8K]3 years ago
8 0
The answer is sin 44 degrees

olya-2409 [2.1K]3 years ago
5 0
There exists a trigonometric identity which states that,
                  sin (A - B) = sin A cos B - cos A sin B
This is very similar to the given expression with A equal to 57° and B equal to 13°. The simplified form of the angle is,
                                 sin (57° - 13°) = sin 44°
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