Which of the identities is true?

Just to confirm:

sin(x) - sin(x) * cos2(x) = sin2(x) .........................................(1)

or

sin(x) - sin(x) * cos2(x) = sin3(x) .........................................(2)

Which one is correct

(exactly how be it was from the source)
- statement (1) or (2)?​
Statement 2, now I got what you meant
 
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