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Please find A, B, C and D on this question. Thanks!!

Mathematics
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Apr 5th, 2015

fog = (x2+7)^2...domain is (-∞,∞)

gof = x^4 + 7...domain is (-∞,∞)

fof = x^4..........domain is (-∞,∞)

gog = (x^2+7)^2 + 7 ...............domain is (-∞,∞)


fog = (x2+7)^2 = x^4 + 14 x^2 + 49


Apr 5th, 2015

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