Answer:
Step-by-step explanation:
cos x=sin 2x
sin 2x-cos x=0
2 sin x cos x-cos x=0
cos x(2 sin x-1)=0
either cos x=0

or
2 sin x-1=0

Answer:
240%
Step-by-step explanation:
240 / 100 Answer: 240%
4-4=0 is an example of that
Answer:

Step-by-step explanation:
we know that
The perimeter of a rectangle is equal to

we know that


substitute

solve for W



Answer:
id just learned this a month ago so i think its 2 and 6 i hope u get 100!
Step-by-step explanation: