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= √25-9
= √16
= 4 (C)
2. = 2-4 ÷ 3-2
= -2 ÷ 1
= -2
3. = lim 2 (x-1) ÷ x-1
x⇒1
= 2 (C)
4 sama 5 belum belajar, hehe :)
= √5²-9
= √25-9
= √16 = 4
2. = x-4 per 3-x
= 2-4 per 3-2
= -2 per 1
= -1