Question

Plz.. solve this urgently​

Answer 1

y = 1/root(2×2) (replacing x by 2)

y = 1/root(4)

y = 1/2 (Answer)

Answer 2

y=1/√2√x

=1/√2.(x^-1/2)

dy/dx=1/√2.d(x^-1/2)/dx

=1/√2.×-1/2.√x

y'=-1/2√2.√x

[y']x=>2 =-1/2√2.(2)=-1/√2