Respuesta :
Answer:
Sin(25)
Step-by-step explanation:
D on Egenuity
The expression sin(42)cos(17º) - cos(42°)sin(17) as a single trigonometric function is sin 25°.
How to find the expression?
It should be noted that sin(A - B) = sinAcosB - cosAsinB
In this case, the given expression is sin(42)cos(17º) - cos(42°)sin(17)
- A = 42°
- B = 17°
Sin(42° - 17°)
= Sin 25°
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