Answer:
<h2>(0, 3) → x = 0, y = 3</h2>
Step-by-step explanation:
The solution to the system of equations is the intersection of lines.
Look at the picture.
Cos45 = cos(2*22.5) = (cos22.5)^2 - (sin22.5)^2 = (cos22.5)^2 * (1-(tan22.5)^2)
= (1 + cos45)/2 * (1-(tan22.5)^2)
Now, solve for tan22.5:
tan22.5 = sqrt(1 - 2cos45 / (1+cos45) )
Answer:
Step-by-step explanation:
x^2=2^2+13^(1/2)^2
x^2=4+13
x^2=17
x=4.1 (to nearest tenth)
Answer:
-41.6
Step-by-step explanation:
Answer:
13.5
Step-by-step explanation:
just subtract everything aan keep the 13/5 and use tat