若f(x)=tan(x+π/4),则()A.f(
若f(x)=tan(x+π/4),则( ) A.f(-1)＞f(0)＞f(1) B.f(0)＞f(1)＞f(-1) .f(1)＞f(0)＞f(-1) D.f(0)＞f(-1)＞f(1)
若f(x)=tan(x+π/4),则( ) f(x)=tan(x+π/4) ∵π/4＜1＜π/2--->π/2＜1+π/4＜3π/4。-π/4＜-1+π/4＜0 --->tan(π/4)＞0＞tan(-1+π/4)＞-1＞tan(1+π/4) 即：f(0)＞0＞f(-1)＞-1＞f(1) .........D