QUESTION 01 / 07easy
A Cauchy-Euler equation has the form:
QUESTION 02 / 07easy
The substitution for Cauchy-Euler is:
QUESTION 03 / 07medium
After substitution, becomes:
QUESTION 04 / 07medium
Under , becomes:
QUESTION 05 / 07medium
Under , becomes:
QUESTION 06 / 07hard
After solving in , to get the answer in we replace:
QUESTION 07 / 07hard
: after substitution, the A.E. roots are: