then prove \frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a}+\frac{1}{2}\cdot\frac{abc}{ab+bc+ca}\ge \frac{5}{3}.$$
and 
Prove that
Let 
Prove that
Let 
Prove that
Let 
Prove that
Y by
An old manuscript reads as follows: ... ''Having reached the island, walk from the palm tree to the white rock, turn 
right, and walk the same distance as you have just walked (that is, from the tree to the rock). Place a peg in the ground. Return to the palm tree, walk to the black rock, turn left, and walk a distance equal to that from the tree to the black rock. Place another peg in the ground. Dig for the treasure half way between the pegs.” When you arrive, you find that the rocks are easily identifiable, but many more trees have grown up and it is impossible to tell which one was meant. Can you find the treasure?
right, and walk the same distance as you have just walked (that is, from the tree to the rock). Place a peg in the ground. Return to the palm tree, walk to the black rock, turn left, and walk a distance equal to that from the tree to the black rock. Place another peg in the ground. Dig for the treasure half way between the pegs.” When you arrive, you find that the rocks are easily identifiable, but many more trees have grown up and it is impossible to tell which one was meant. Can you find the treasure?This post has been edited 1 time. Last edited by parmenides51, Jan 15, 2021, 2:41 PM
,
,
direction beach.
