Question

if root 2=1.414 find full root root 2-1 by root2+1

Answer 1

(√2-1)/(√2+1) × (√2-1)/(√2-1),

(√2-1)²/(√2²-1²),

(2+1-2√2)/(2-1),

(3-2√2)/1,

(3-2×1.414),

3-2.828,

0.172