Question

if√2=1.4142then find√√2-1/√2+1​

Answer 1

Answer:

1.2426

Step-by-step explanation:

√2-1/√2+1

=(√2-1)(√2-1)/(√2+1)(√2-1)

=(√2-1)^2/(√2)^2-(1)^2

=2+1-2√2)/2-1 {using (a-b) ^2=a^2+b^2-2ab,

=3-3√2/1 a^2-b^2 =(a+b)(a+b) }

= 3-3×1.4142

=1.2426