Question

Write the given expression as a single trigonometric function.
sin(42)cos(17º) - cos(42°)sin(17)

Answer 1

Answer:

Sin(25)

Step-by-step explanation:

D on Egenuity

Answer 2

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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