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標題:
唔記得左d好基礎既野
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300(144+x^2)^1/2 要點計... 300(144)^1/2 + 300(x^2)^1/2 = =?????? 我想要個詳細步驟
最佳解答:
Remember this e.g. 64^1/2 = the square root of 64 = 8 Therefore: 1) 300(144 + X^2)^1/2 = 300(12 + X) =3600 + 300X 300X = -3600 X = -12 2) 300(144)^1/2+ 300(X^2)^1/2 = 300(12) + 300(X) =3600 +300X 300X = -3600 X = -12
其他解答:63D0B758E2D502CC
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