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

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

ajprincessBest ResponseYou've already chosen the best response.1
Does that make sense @rubyhunter?
 one year ago

rubyhunterBest ResponseYou've already chosen the best response.0
yea but is sinx what they mean by in terms of x?
 one year ago

jayz657Best ResponseYou've already chosen the best response.0
you 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
 one year ago
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