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### Assignment 4

Solve:

### Solution

The domain is defined by the function and is equal to (of course , i.e. , or , i.e. ).

We work out the equation:

We substitute into the equation:

and get:

This equation can be factorized:

and has the solutions:

or

Thus the corresponding solutions for are:

and thus

and thus

Both solutions lie in the domain and are valid.

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