MathDB

86

Part of 1975 Chisinau City MO

Problems(1)

Chisinau MO p86 1975 R1 VIII sign of \sqrt{4+\sqrt7}-\sqrt{4-\sqrt7}-\sqrt2

Source:

3/16/2021
What is the number x=4+7−4−7−2x =\sqrt{4+\sqrt7}-\sqrt{4-\sqrt7}-\sqrt2, positive, negative or zero?
algebraradical