lynmarie1234lm lynmarie1234lm

29-11-2021
Mathematics

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Let f(x)= - 4x - 1 and g(x)=x² - 5
Find (fog)(-2).

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loneguy loneguy

29-11-2021

[tex]f(x) = -4x-1\\\\g(x) = x^2 -5 \\\\g(-2) = (-2)^2 -5 = 4 -5 =-1\\\\(f \circ g)(-2)\\\\=f(g(-2))\\\\=f(-1)\\\\=-4(-1) -1 = 4-1=3[/tex]

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