Using the identity :
Cos (2a) = 1-2 Sin^2(a)
Therefore :<span>1−2 sin ^2 (22.5∘) = Cos(2a)
= Cos (2 * 22.5) = Cos 45</span>
Answer:
There is a discontinuity at x=1
Step-by-step explanation:
This your answer hope i helped. :)
<span> The point lies one unit above the regression line. </span>
Step-by-step explanation:





