تـجـمـع لحل Online HW6-1.3 & HW7-1.5

[semsem99]

ابغى أحد يحلها بليز الموقع بيقفل

Find each of the following functions and their domains.
f(x) = 2 - 5x
g(x) = cos(x)
فقرة (b) g f =

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Find each of the following functions and their domains.
f(x) = x2 - 2
g(x) = 3x - 1
(a) f g =
x 2
(-, 1]
(-, )
x > 3


(b) g f =
x 2
x > 3
(-, )
(-, 1]


(c) f f =
x 2
x > 3
(-, 1]
(-, )


(d) g g =
(-, )
x > 3
x 2
(-, 1]

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والسؤال الاخير هو

(a) If g(x) = 2x + 1 and h(x) = 4x2 + 4x + 9, find a function f such that f g = h. (Think about what operations you would have to perform on the formula for g to end up with the formula for h.)
f =

(b) If f(x) = 4x + 5 and h(x) = 4x2 + 4x + 1, find a function g such that f g = h.
g(x) =

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