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# C2 Log Doubt-SOLVED watch

1. f(x)=3(2^-x)-1
The function g is g(x)=

Okay, the answer is supposed to be -1

What I've done so far
f( )=3( ) -1
(The log has a minus in front of it but I don't know how to get that to work in Latex)

=3() -1
Not sure how to get it in the form needed
2. (Original post by mintmocha)
f(x)=3(2^-x)-1
The function g is g(x)=

Okay, the answer is supposed to be -1

What I've done so far

Not sure how to get it in the form needed
Note that . In your case, a=2 and k=...
3. 2^log_2 (x^-1)=x^-1
4. (Original post by Farhan.Hanif93)
Note that . In your case, a=2 and k=...
Ah, thank you!

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