Question

Ifx=1/1+root2, then the value of xsquare+2x+3 is delhi ntse stage 1

Answer 1

Hiii.....

X = 1 / 1 + root2 =( root2 - 1 )...
.... By rationalisation...

$x \: = \sqrt{2} - 1$
${(x + 1)} = \sqrt{2}$
${(x + 1)}^{2} = 2$
${x}^{2} + 2x + 1 + 2 = 2 + 2$
${x}^{2} + 2x + 3 = 4$
Hope it correct....

Answer 2

Answer:

answer is 4

hope it helps