5. y = 2^(x^2), x_0 = 1.
y`=2^(x^2)*(x^2)`*ln2 y`=2^(x^2)*(2x)*ln2 y`=ln2*2^(x^2+1)*x y`(1)=ln2*(2^(1+1))*1 y`(1)=4ln2