cari dulu √(28 - 10√3)..
berarti
√(28 - √100.√3)) =
√(28 - √300) =
√(28 - √4.√75) =
√(28 - 2√75)
pake konsep
√a - √b = √(a+b) - 2√(a x b))
berarti =
√(25 + 3) -2√(25 x 3)) =
√25 - √3 =
5 - √3
nah jadi
44/ √(28 - 10√3)) =
44 / (5-√3) =
(44 x 5+√3) / (5-√3 x 5+√3) =
(220 + 44√3) / (25 - 3) =
(220 + 44√3)/22 =
2√3 + 10
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cari dulu √(28 - 10√3)..
berarti
√(28 - √100.√3)) =
√(28 - √300) =
√(28 - √4.√75) =
√(28 - 2√75)
pake konsep
√a - √b = √(a+b) - 2√(a x b))
berarti =
√(25 + 3) -2√(25 x 3)) =
√25 - √3 =
5 - √3
nah jadi
44/ √(28 - 10√3)) =
44 / (5-√3) =
(44 x 5+√3) / (5-√3 x 5+√3) =
(220 + 44√3) / (25 - 3) =
(220 + 44√3)/22 =
2√3 + 10