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27.01.2020 •
Mathematics
Use f(x) = 1 2 x and f -1(x) = 2x to solve the problems.
f−1(−2) =
f(−4) =
f(f−1(−2)) =
Solved
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Ответ:
The answer to your question is below
Step-by-step explanation:
Functions
f(x) = 12x f⁻¹(x) = 2x
a) f⁻¹(-2) = 2(-2)
f⁻¹(-2) = -4
b) f(-4) = 12x
f(-4) = 12(-4)
f(-4) = -48
c) f(f⁻¹(-2)) =
f(f⁻¹(x)) = 12(2x) = 24x
f(f⁻¹(-2)) = 24(-2) = -48
I think your functions are wrong they must be f(x) = 1/2x f⁻¹(x) = 2x
a) f⁻¹(-2) = 2(-2)
= -4
b) f(-4) = 1/2(-4)
= -2
c) f(f⁻¹(x)) = 1/2(2x)
= x
f(f⁻¹(-2)) = -2
Ответ:
Therefore, the 3rd graph represents the solutions to inequality.
Please also check the graph below.
Step-by-step explanation:
Given the expression
condition 1
Add 6 to both sides
Divide both sides by 2
condition 2
Add 6 to both sides
Divide both sides by 2
combine the intervals
Merging overlapping intervals
Thus,
Therefore, the 3rd graph represents the solutions to inequality.
Please also check the graph below.