Math Problem Statement
Evaluate the expression 5! / [3!(5 - 3)!] without using a calculator.
Solution
The expression to evaluate from your image is:
Let's break this down:
- means .
- means .
- , which is .
Now, substitute these into the expression:
So, the answer is .
Would you like further details or have any questions?
Here are 5 related questions you might find useful:
- How do factorials work and why are they useful in combinatorics?
- What is the significance of permutations in mathematics?
- Can you explain how the binomial coefficient is related to factorials?
- How does simplifying expressions involving factorials work?
- In what real-world situations might factorials and combinations be used?
Tip: When simplifying expressions involving factorials, always look for common terms that can be canceled out to make the computation easier.
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Math Problem Analysis
Mathematical Concepts
Factorial
Combinatorics
Simplification
Formulas
n! = n × (n-1) × ... × 1
Binomial coefficient formula: C(n, r) = n! / (r! × (n - r)!)
Theorems
Factorial properties
Combinatorial simplification
Suitable Grade Level
Grades 9-12