find range of function, f(x) = |x-7| / x
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1
Answer:
I guess it's fraction not function
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Answer:
Let f(x) = y, now compute value of x then find the domain of what we get in x. follow the step you will get it.
mod(x-7) = yx
x - 7 = plus minus (yx)
x( 1 (+ -) y) = 7
x = 7/(1 (+ -) y)
now we find domain of x.
y is not equal to 1 or -1, so range of function is R-{+1,-1}.
Note : symbol (+ -) means plus minus
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