Correct Answer - Option 1 : 4
Given:
\(\sqrt {20 - \sqrt {20 - \sqrt {20 - \sqrt {20 - ...\infty } } } } \)
Concept used:
Simplification
Calculation:
Here 20 is given inside the root.
Break it into consecutive order
⇒ 4 × 5 = 20
In case of subtraction the smaller number will be the answer.
Here Ans : 4