Rewrite with only sin x and cos x
Cos 2x+sin x
1 answer:
Answer:
Cos 2x+sin x = cos x cos x - sin x sin x + sin x
Step-by-step explanation:
Cos 2x+sin x
use Trigonometric identities.
cos (2x) = cos (x + x) = cos x cos x - sin x sin x
Cos 2x+sin x = cos x cos x - sin x sin x + sin x
You might be interested in
Answer:
A. -6
Step-by-step explanation:
In order to find 
we will plugin 
In order to find 
we will plugin 
∴ 
4+3.5=7.5
7.5x =180
180/7.5
=24 (answer)
He is 40 mins away form home because he is going 65 mi/hr = 1 min per mile
hopefully that helps you make an equation
Answer:
P = 4x + 10
Step-by-step explanation:
perimeter of a rectangle = 2( width + length )
P = 2 ( x - 2 + x + 7 )
P = 2 ( x + x + 7 - 2 )
P = 2 ( 2x + 5 )
P = 4x + 10
Amount of simple interest will be earned is $96.90
