Original
Suppose we have functions {{MATH_28}} and {{MATH_29}} with:
{{ENV_30}}
Find the formula for {{MATH_31}} and state its domain.
{{CMD_32}}
The range of {{MATH_33}} is {{MATH_34}}, which is equal to the
domain of {{MATH_35}}. This means the domain of {{MATH_36}} is {{MATH_37}}, since for any {{MATH_38}} in {{MATH_39}},
the value {{MATH_40}} is defined and will be in the domain of {{MATH_41}}.
Next, we substitute {{MATH_42}} for each instance of {{MATH_43}} found
in
{{MATH_44}}
and so
{{ENV_45}}
{{CMD_46}}
{{CMD_47}}