rubyhunter
sin(x+pi) in terms of x



This Question is Closed

zordoloom
Best Response
You've already chosen the best response.
0
Does this equal 0?

rubyhunter
Best Response
You'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

ajprincess
Best Response
You'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

jishan
Best Response
You've already chosen the best response.
1
sin(180+x)=sinx

ajprincess
Best Response
You've already chosen the best response.
1
Does that make sense @rubyhunter?

jishan
Best Response
You've already chosen the best response.
1
right ajprincess

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

ajprincess
Best Response
You've already chosen the best response.
1
yaa

rubyhunter
Best Response
You've already chosen the best response.
0
okay thanks

ajprincess
Best Response
You've already chosen the best response.
1
welcome:)

jayz657
Best Response
You'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