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rubyhunter
 2 years ago
Best ResponseYou've already chosen the best response.0idk thats y i need help, this is how they gave it to me , it didnt say 0

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1sin(x+pi) is in the third quadrant. in the third quadrant only tan value is positive. pi=180 here sin(x+pi)=sinx

ajprincess
 2 years ago
Best ResponseYou've already chosen the best response.1Does that make sense @rubyhunter?

rubyhunter
 2 years ago
Best ResponseYou've already chosen the best response.0yea but is sinx what they mean by in terms of x?

jayz657
 2 years ago
Best ResponseYou've already chosen the best response.0you can try this using the identity sin(x + pi) = cos(x)sin(pi) + sin(x)cos(pi) sin(pi) = 0 cos(pi) = 1 so you get cos(x)(0) + sin(x)(1) = sinx
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