Question

answer for 2,3,5&6 with full steps

Answer 1

hi, here is ur answer
u should first rationalize the denominator
4+√2/2+√2=a-√b
multiply with conjugate we got I,e 2-√2
w
4+√2/2+√2×2-√2/2-√2 =4+√2×2-√2/2+√2×(2-√2

4+√2/2^2-(√2)^2 (a^2-b^2 formula)
=4+√2/4-2
4+√2/2=4/2+√2/√2×√2=2+1/√2
comparing with a-√b we got a=2 and b= 1/√2

Answer 2

Hi there!
Its Alia15...
I have answered all four question which you gave...
You can see them in the given pictures..