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y' = 3x^2 - 4x + 3
m=y'(x=2) = 3(2)^2 - 4(2) + 3
= 12-8+3
m= 7
y-y1=m(x-x1)
y-5=7(x-2)
y-5=7x - 14
y= 7x - 14 + 5
y= 7x - 9
Jadi persamaan grs singgung kurva y=x^3 - 2x^2 + 3x - 1 adalah y=7x - 9
Semoga membantu :)