Answer:
Okay, I think you mean't 4x-9=6x+12.
Step-by-step explanation:
x=-7
y=2(cos(50=90n)=isin(50+90n))
take n=0 ,y=2(cos(50)+isin(50))
take n=1,y=2(cos(140)+ isin (140))
take n=2,y=2(cos(230)+ isin (230))
take n=3,y=2(cos(320)+isin(320))
Answer:
15 23
Step-by-step explanation: