How do I simplify 2sinxcosx?

I'm confused as to what it is I'm supposed to simplify. Thanks for any help...

Probably you're supposed to work off this identity:

sin(a + b) = sina cosb + cos a sinb

Therefore

sin(a + a) = sina cos a + cos a sin a = 2sinacosa

2sinxcosx = sin(x + x) = sin2x

this i got from yahoo answer

this answer

i hope i can help you now, thank

I'm confused as to what it is I'm supposed to simplify. Thanks for any help...

**Answer :**Probably you're supposed to work off this identity:

sin(a + b) = sina cosb + cos a sinb

Therefore

sin(a + a) = sina cos a + cos a sin a = 2sinacosa

2sinxcosx = sin(x + x) = sin2x

this i got from yahoo answer

this answer

i hope i can help you now, thank

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