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OpenStudy (anonymous):
What is the second derivative of F(x)=sin(x)-cos(x) I solved it out and ended up with no change, but that didn't seem right, so thought I would ask you.
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OpenStudy (kc_kennylau):
First derivative = cos(x)+sin(x) Second derivative = -sin(x)+cos(x)
OpenStudy (anonymous):
ahhh, I thought I was doing something wrong. Thank you
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