Question

Rewrite with only sin x and cos x.
_______________________________________________
sin 3x - cos x

2 sin x - sin3x - cos x

2 sin x cos2x + sin x - 2 sin3x - cos x

2 sin3x cos4x + 1

3 sin x cos x - sin3x - cos x

Answer 1

None of those choices contain only sin x and cos x so non fulfill the requirements of the problem.

Answer 2

i need to rewrite sin3x-cosx

Answer 3

What is all that stuff under sin3x-cosx?

Answer 4

possible choices

Answer 5

Exactly. That is why I said that none of them can be correct. Look at the first choice. It contains sin3x

Answer 6

The directions say it can contain only sinx and cosx

Answer 7

the first choice is correct right? -1?

Answer 8

i think i got it

Answer 9

What is it?

Answer 10

2 sin x - sin3x - cos x

Answer 11

That contains sin3x.

Answer 12

I think some of them are exponents..............

Answer 13

so 2 sin x cos2x + sin x - 2 sin3x - cos x?

Answer 14

Oh gees...I hate it when you have to guess at the problem.

Answer 15

im plugging it im my calc

Answer 16

congrats prime