If you cannot solve the proposed problem, try to solve first a simpler related problem.


Mathematical Methods in Science (1977)


If you cannot solve the proposed problem, try to solve first a simpler related problem.

If you cannot solve the proposed problem, try to solve first a simpler related problem.

If you cannot solve the proposed problem, try to solve first a simpler related problem.

If you cannot solve the proposed problem, try to solve first a simpler related problem.