need help with inverse function problem.

1.find the inverse for:

?:confused:

and

this one is composite function problem

2.if and given that =7, find the value of f(49)?:confused:

thanks for the reply...

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- February 18th 2010, 03:16 PMpencil09composite and invers function problem
need help with inverse function problem.

1.find the inverse for:

?:confused:

and

this one is composite function problem

2.if and given that =7, find the value of f(49)?:confused:

thanks for the reply... - February 18th 2010, 03:26 PMpencil09
1.

i've try to simplify the function:

so,

and ????