- #1
Raghav Gupta
- 1,011
- 76
Homework Statement
If a,b,c,d ∈R+ and a,b,c,d are in H.P. Then
1. a+ d > b+ c
2. a+ c > b+ d
3. a + b > c+d
4. a-b > c-d
Homework Equations
Don't know which equation to apply
The Attempt at a Solution
1/a, 1/b , 1/c and 1/d would be in A. P
1/b -1/a = 1/d - 1/c