Answer:
378$
Step-by-step explanation:
D is true!!
Hope this helped:)
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°
Obtuse angle that’s the answer
