In Library Browser, with NPL updated today (both "svn update" and "NPL-update"), an Advanced Search with Keywords
"partial fraction" finds 5 problems
while the very literal search procedure using
"partial fractions" finds 150 problems (in UCSB, ma123DB, ASU-topics, Michigan, etc)
There is also a single problem tagged "partial function", but it involves partial derivatives.
WeBWorK Main Forum
partial fraction expansion
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