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g'(x) = 12x²-26x+4
Di titik x = 1
Tentukan gradien:
g'(1) = 12-26+4
m = -10
Melalui ordinat g(1)
g(1) = 4-13+4-3
g(1) = -8
Maka, titik ayng disinggungnya adalah (1,-8)
Dengan gradien -10
y - (-8) = -10 (x-1)
y+8 = -10x + 10
10x + y - 2 = 0