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3y = -x+6
y = -1/3x+2
m = -1/3
persamaan garis singgung lingkaran
y = mx +- r√(1+m²)
y = -1/3x +- √6.√(1+1/9)
y = -1/3x +- √6.√(10/9)
y = -1/3x +- √6.(√10/3)
y = -1/3x +- √60/3
y = -1/3 x + 2
Gradien = -1/3
Pusat lingkaran (0,0)
Jari-jari : √6
Persamaan garis singgungnya: