Drawing a diagram can help you visualize the problem, understand the relationships between different elements, and provide insights into how to approach the solution.
Writing out the first few terms of a sequence or series can help identify patterns or properties that are not immediately obvious. This can provide clues on how to approach finding the general formula or solving the problem.
Substitution involves replacing variables with simpler expressions or known values, which can simplify the equation and make it easier to solve. This strategy can help reduce complex equations to more manageable forms.
The principle of inclusion-exclusion is a powerful tool in combinatorics to count the number of elements in the union of several sets. It helps ensure that all cases are counted without overcounting.
Breaking down a complex problem into smaller, more manageable parts can help to simplify the problem and make it easier to solve. This strategy can make the problem less overwhelming and reveal a clear path to the solution.
