bret4325 bret4325

23-01-2024
Mathematics

contestada

Use the drop-down menu to choose the appropriate substitution. -cos^2(x) - 4cos(x) + 5 = 0, let u =...

a) -cos(x) + 1
b) cos(x) - 5
c) cos(x) + 5
d) cos(x) - 1

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