How to Calculate Nth Root
What is Nth Root?
The nth root is the reverse of exponentiation. ⁿ√x finds the value that, when raised to power n, equals x. Used in algebra, geometry, and engineering.
Formula
ⁿ√x = x^(1/n)
Step-by-Step Guide
- 1Enter the value x and root degree n
- 2Calculate x^(1/n) using logarithms or iterative methods
- 3Result is the nth root
Worked Examples
Input
⁴√81
Result
3
3⁴ = 81
Common Mistakes to Avoid
- ✕Mixing root and power
- ✕Negative numbers with even roots
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