Selennella0 Selennella0

Today at 10:26 PM
Mathematics

Answered

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

sin 57° cos 13° - cos 57° sin 13°

Answer :

meerkat18 meerkat18

Today at 10:32 PM

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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