hello, i am having trouble understanding number 19 a and b.
. . .\(\displaystyle \mbox{Let }\, f(x)\, =\, \dfrac{x\, -\, 2}{x\, +\, 1}.\, \mbox{ Find the following:}\)
. . . . .\(\displaystyle \mbox{(a) }\, f(x\, +\, 2)\)
. . . . .\(\displaystyle \mbox{(a) }\, f\left(\dfrac{1}{x}\right)\)
i replace the x with the number provided but my final answer is totally different from the answers in the book.
. . .\(\displaystyle \mbox{Let }\, f(x)\, =\, \dfrac{x\, -\, 2}{x\, +\, 1}.\, \mbox{ Find the following:}\)
. . . . .\(\displaystyle \mbox{(a) }\, f(x\, +\, 2)\)
. . . . .\(\displaystyle \mbox{(a) }\, f\left(\dfrac{1}{x}\right)\)
i replace the x with the number provided but my final answer is totally different from the answers in the book.
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