Add nthRoot

snippets/nthRoot.md

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+---
+title: nthRoot
+tags: math,beginner
+---
+
+Calculates the nth root of a given number.
+
+- Use `Math.pow()` to calculate `x` to the power of `1/n` which is equal to the nth root of `x`.
+
+```js
+const nthRoot = (x, n) => Math.pow(x, 1 / n);
+```
+
+```js
+nthRoot(32, 5); // 2
+```