Answer:
sin (3 x) - cos (x)=
= sin (2x + x) - cos (x)=
= sin 2x * cos x + cos 2 x * sin x - cos x = ( using additional formulas )
= 2 sin x cos² x + ( cos² x - sin² x ) sin x - cos x =
= 2 sin x cos² x + ( 1 - sin² x - sin² x ) sin x - cos x =
= 2 sin x cos² x + ( 1 - 2 sin² x ) sin x - cos x =
= 2 sin x cos² x + sin x - 2 sin³ x - cos x
Answer: B )
Step-by-step explanation:
Answer:
I'm so sorry but I don't know this problem. I'm still in middle school so I haven't learned this yet. I wish I could help. ):
Since the break even point at 50000
Devises, the company would spend 25 months before they make profit to sell 50000
50,000÷2,000=25 months
Answer:
20.28 oz
Step-by-step explanation:
30% is the same as 0.30
Multiply 15.6 x .30, and you get 4.68
Then, add 4.68 to 15.6
When you add them up you get 98.465
When you round it you get 98.47 as your answer.
-Steel jelly