A tricky no calculator question

Thanks to Aahaan for the suggestion This was a practice Olympiad problem for students. Doubtnut Further reading strategy to denest radicals Math StackExchange Subscribe: Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay. Book ratings are from January 2022. My Books (worldwide links) My Books (US links) Mind Your Decisions: Five Book Compilation A