11+√2+1√2+√3+1√3+√4+…+1√15+√16=?
Answer:
3
- If we multiply the numerator and denominator of the first term by √2−1 we get:
- Similarly, if we multiply numerator and denominator of the second term by , we get:
- Using the same technique with the other terms too, we can re-write the expression in question as: