October 2018 2 7K Report
Titik (a, b) adalah pusat lingkaran x2 + y2 – 2x + 4y + 1 = 0. Jadi 2a + b = …
a. 0
b. 2
c. 3
d. –1
e. –2

moho disertakan caranya, terimakasih :)
mohon di sertakan caranya, terimakasih :)
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