Jahin5996
22.03.2021 •
Mathematics
HELP PLEASE I'm unsure of my answer and I'm really hoping you can clarify if I'm wrong
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Ответ:
3 cos((x - π ) - 4 = 3 cos(x) - 4 since cos(x-π) = cos(x)
-1 ≤ cos(x) ≤ 1
-3 ≤ 3cos(x) ≤ 3
-3-4 ≤ 3 cos(x)-4 ≤ 3-4
-7 ≤ 3 cos(x) ≤ -1
The range is -7 to -1 so the midpoint is (-7-1)/2 = -4
y = -4 is the equation of the midline
Step-by-step explanation:
there you go