Answer:
sin 5x cos x - cos 5x sin x = sin(4x)
Step-by-step explanation:
Given that the trigonometric expression,
sin 5x cos x - cos 5x sin x
Here we use the "sum and difference formulas"
Sum and Difference Formulas
sin(A+B)=sin A cos B + cos A sin B
sin(A-B)=sin A cos B - cos A sin B
cos(A+B)=cos A cos B - sin A sin B
cos(A-B)=cos A cos B + sin A sin B
So,
sin 5x cos x - cos 5x sin x = sin (5x - x)
sin 5x cos x - cos 5x sin x = sin(4x)
That's the final answer.
2 bags. She needs to buy 2 bags of 10 pounds of potting soil.
20-13=7
2 more bags will give Marunne's father all the soil he needs and 7 pounds left over.
190 miles
You just needed to find 19% of 1000
Answer:
v
Step-by-step explanation:
Answer:
400 shakes and 1600 ice creams
Step-by-step explanation:
Look at the attachment
