Jawabanmu

2014-05-30T23:55:02+07:00
Y = tan x
m = y' = sec² x = (2/√2)² = 2
Persamaan garis:
y - 1 = 2(x - pi/4)
y - 1 = 2x - pi/2
y = 2x + 1 - pi/2