If f (2x + 1) = x2 + 1, then f (0) = 0___ ．

If f (2x + 1) = x2 + 1, then f (0) = 0___ ．

∵ f (2x + 1) = x2 + 1, ∵ let 2x + 1 = t, x = T-12, ∵ f (T) = (T-12) 2 + 1, ∵ f (0) = 14 + 1 = 54

F (1-2x) = (1-x & # 178;) / X & # 178; (x ≠ 0), find f (1 / 2)

1-2x= 1/2
x= 1/4
f(1/2) = ( 1- (1/4)^2) /(1/4)^2
= 15

Set a = {(x.y) / 2x + y = 1}. B = {(x.y) / x-2y = 2}. Find a intersection B

Let 2x + y = 1 and x-2y = 2 be regarded as two straight lines, and find the intersection of a and B, that is, it is more urgent to find the point set of two straight lines, that is, the intersection of a and B is (4 / 5, - 3 / 5)