Answer:
x={0, 2pi/3, pi, 4pi/3}
Step-by-step explanation:
First, move sin x by adding sin x to both sides. sin 2x+ sin x = 0. Next using the double angle identity, sin 2x=2(sin x)(cos x), so 2(sin x)(cos x)+sinx=0. Factoring, sin x(2cos x +1)=0. Solving, sin x=0 and 2cos x +1 = 0, or cos x = -1/2.
sin x = 0. Using the unit circle, sin x=0 when x=0 and x=pi.
cosx=-1/2. Using the unit circle, cos x= -1/2 when x=2pi/3 and x=4pi/3.
Answer:
6 miles
Step-by-step explanation:
After one hour the dog will have walked three miles after two hours the dog will have walked three more miles for a total of 6 miles.
Answer:
12 is the answer
Step-by-step explanation:
Answer:
<h2>The triangle is not right triangle</h2>
Step-by-step explanation:
The steps in the above photo
I hope that is useful for you :)
