MGA20078
08.12.2020 •
Mathematics
Write in logarithmic form:
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Ответ:
Left-hand side: .
Right-hand side: .
Step-by-step explanation:
Apply the logarithm power rule: for all .
This property is not only true for logarithm to the base , but for other bases, as well.
Take the logarithm (to the base ) of the left-hand side of this equation:
.
For the right-hand side of this equation, consider the logarithm quotient rule:
for all and .
Indeed, on the right-hand side of this equation, and . Therefore:
.
This expression could be further simplified. Notice that is equivalent to for all . (Think about how whereas .)
Therefore, would be equivalent to . Apply the logarithm power rule to show that .
.
Indeed, the left-hand side of this equation matches the right-hand side.
Ответ:
Step-by-step explanation:
The given function is
To find the inverse of this function, we have to replace for , and then isolate , as follows
Then, we have to switch variables, as follows
Therefore, the inverse of the given function is
The graph attached shows both functions. The blue line is the inverse of