August 2018 1 552 Report
1.persamaan lingkaran yang berpusat di titik (2,-1) dan berdiameter 4√10 adalah ...
a.x² + y² - 4x - 2y - 35=0 c.x² + y² - 4x +2y - 33 = 0 e.x² + y² -+ 4x- 2y - 33 = 0
b.x² + y²- 4x +2y - 35 =0 d.x² + y² - 4x - 2y - 35 = 0

2.akar persamaan x² + (a-1)x + 2 = 0 adalah α dan β.Jika α = 2β dan α > 0 makan nilai α = ...
a.2
b.3
c.4
d.6
e.8

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