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itscheesycheedar
08.08.2019 •
Mathematics
If f(x) = 4(3x - 5), find f^-1(x)
a. f-1(x) = x+20/12
b. f-1(x) = x+5/4
c. f-1(x) = x+5/12
d. f-1(x) = x-20/12
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Ответ:
The answer is A.
Step-by-step explanation:
Lets call f(x)=y, so y= 4*(3*x-5), we want to find 'x', using 'y' as a the variable.
Now lets change the name of 'y' to 'x', and 'x' to f^-1(x).
f-1(x) = (x+20)/12
Ответ:
I searched it so I hope this helps.
Step-by-step explanation:
Before sixty years age of Anusha = (X-60) year's. X = 150 year's. Therefore, Age of Arun = 4X = 4 × 150 = 600 years.