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Fleming
Mathematics
28 September, 01:18
For the function f (x) = x^2-12 find (f^-1) (4)
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Dallas Case
28 September, 01:36
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F (x) = x^2 - 12
y = x^2 - 12
y + 12 = x^2
x = sqrt (y + 12)
(f^-1) (x) = sqrt (x + 12)
(f^-1) (4) = sqrt (4 + 12) = sqrt (16) = 4
(f^-1) (4) = 4
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