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OpenStudy (anonymous):
Find g(f(x))
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OpenStudy (anonymous):
Is there a g= and a f=?
OpenStudy (anonymous):
If f(x) \[\sqrt{x-3}\] and g(x) = \[\sqrt{{x ^{2}}+5}\]
OpenStudy (bahrom7893):
f(x) = sqrt(x-3) To find g(f(x)), replace all the xs in g(x) by sqrt(x-3) g(f(x))
OpenStudy (bahrom7893):
g(f(x)) = sqrt[ (f(x))^2 + 5 ] just replace that f(x) by sqrt(x-3)
OpenStudy (bahrom7893):
and then simplify.
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OpenStudy (anonymous):
Yep that's what I did, and I got sqrt(sqrt(x^2 + 5) - 3)
OpenStudy (bahrom7893):
no u found f(g(x)), do it the other way around.
OpenStudy (bahrom7893):
u plugged in g(x) into f(x). U gotta plug in f(x) into g(x)
OpenStudy (anonymous):
Ah ok. Cheers
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