- #1

- 1

- 0

**1. c, d positive real numbers and c+d=1 prove that (c+1/c)**

^{2}+(d+1/d)^{2}>=25/2**2. Prove the previous also formulate and prove a generalization for n**

**3. I first tried to expand but got stuck, I thought of using Binomial but also got stuck. I tried to do (a+b)**

^{2}were a=(c+1/c) and b=(d+1/d) but also nothingAny help is appreciated

Last edited: