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caranya :cos itukan sami (samping/miring)
cos 30 = 1/2 akar 3x/20 = 1/2 akar 3,
jd x'a 10 akar 3ngerti ?
12) difaktorkan
(3x-6) (x+2) (3x-6)
__________ = ______
(x+5) (x+2) (x + 5)