cos(3x) = cos(2x+x)
= cos(2x) cos (x) -sin(2x)sin(x)








Answer:
x-intercept: -1
y-intercept: 0.5
Step-by-step explanation:
The intercept for each is where the other coordinate is at 0.
Answer:
sorry we cant see the work I would help if I see the pitcher plz
Step-by-step explanation:
(x-3)^2 + (x+5)^2=9^2
(x^2-6x+9) + (x^2+10x+25)=81
2x^2+4x+34=81
2x^2+4x-47=0
From here just use quadratic formula