💡 Squares
n² = (n−1)² + (2n−1)
Pichla square yaad ho to next nikalna easy
Medium Priority ⭐⭐ 🔒 New
Steps
- Ek chhota square yaad rakho (e.g. 16² = 256).
- Next n ke liye (2n−1) add karo.
- Repeat karke chain banao.
Worked example
17² = ?
16² = 256, add (2×17−1)=33 → 289
Answer: 289