If h(x) = 5 + x and mc003-1.jpg, which expression is equivalent to mc003-2.jpg?
Asked by maham237 @ in Mathematics viewed by 342 People
If h(x) = 5 x and k(x)=1/x, which expression is equivalent to (koh)(x)?
Answered by maham237 @
May be there is an operator missing in the first function, h(x). I will solve this in two ways, 1) as if the h(x) = 5x and 2) as if h(x) = 5 + x
1) If h(x) = 5x and k(x) = 1/x
Then (k o h) (x) = k ( h(x) ) = k(5x) = 1/(5x)
2) If h(x) = 5 + x and k (x) = 1/x
Then (k o h)(x) =k ( h(x) ) = k (5+x) = 1 / [5 + x]
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