√[(3.14+1/3.14)²-4]+√[(3.14-1/3.14)²+4]
=√[3.14²+(1/3.14)²+2-4]+√[3.14²+(1/3.14)²-2+4]
=√(3.14-1/3.14)²+√(3.14+1/3.14)²
=3.14-1/3.14+3.14+1/3.14
=6.28
√[(3.14+1/3.14)²-4]+√[(3.14-1/3.14)²+4]
=√[3.14²+(1/3.14)²+2-4]+√[3.14²+(1/3.14)²-2+4]
=√(3.14-1/3.14)²+√(3.14+1/3.14)²
=3.14-1/3.14+3.14+1/3.14
=6.28