Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

f(x) = x2 - 3 and g(x) = √(3+x)

Question

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

f(x) = x2 - 3 and g(x) = √(3+x)

anonymous · Answer

please help!!! 15 mins to complete the quiz!! 2nd to last question left!!

anonymous · Answer

substitute g(x) for x in f(x)

f(x) = x2 - 3 
f(g(x)) = ( sqrt 3+x)^2 - 3 

f(g(x)) = 3+x-3

solve this u get ur answer

similar way u do it for g(f(x))

anonymous · Answer

hmm.. so itd be = x+6? im terrible at math and dont understand this question at all

anonymous · Answer

noo ... 

first to find f(g(X) substitute g(x) in place of x 

tell me what to do get???

anonymous · Answer

hmmm..

anonymous · Answer

idk i get comfused with the square root sign

anonymous · Answer

ok
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got it ???