SOLUTION: What is the simplified form of sin(x+pi)? A. cos x B. sin x C. -sin x D. -cos x

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Question 632532: What is the simplified form of sin(x+pi)?
A. cos x
B. sin x
C. -sin x
D. -cos x
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
sin(x+pi)

sin(x)cos(pi)+cos(x)sin(pi)

sin(x)(-1)+cos(x)(0)

-sin(x)