標題:

中一級有向數及數線(程度一)

發問:

[1]計算 -【- 4 + ( - 1/4 + 1/3) 】 的值。 [2]計算 ( -24 ) / ( - 2/3 )* ( - 3/4 ) *( +6 )的值 [3]計算 ( -1 ) 73 * ( -1 0 ) 11 的值

最佳解答:

您好,我是 lop,高興能解答您的問題。 (1) -[-4+(-1/4+1/3)] = -[-4+(-3/12+4/12)] = -{-4+[(-3+4)/12]} = -{-4+[+(4-3)]/12} = -[-4+(+1)/12] = -(-4+1/12) = +4-1/12 = +48/12-1/12 = +(48-1)/12 = +47/12 (2) (-24)/(-2/3) * (-3/4)*(+6) = 3(-24)/3(-2/3) * (-3)(+6)/4 = (-72)/(-2) * (-18)/4 = +36 * -9/2 = - (36*9)/2 = -324/2 = -162 (3) (-1)?3 * (-10)11 = (-1)?2 * (-1)1* (-10)1?*(-10)1 = [(-1)2]3? * (-1) * [(-10)2]?*(-10) = 13? * (100)? * (-1)(-10) = 10000000000 * +10 = +100000000000 2011-10-16 16:23:12 補充: (3) (-1)73 * (-10)11 = (-73) * (-110) = +(73*110) = +8030

其他解答:

此文章來自奇摩知識+如有不便請留言告知

1. -【- 4 + ( - 1/4 + 1/3) 】 =-(-4+1/12) =-(-3/11/12) =3/11/12 2. ( -24 ) / ( - 2/3 )* ( - 3/4 ) *( +6 ) =36*( - 3/4 ) *( +6 ) =-27*6 =-162 3. ( -1 ) 73 * ( -1 0 ) 11 = 100 000 000 000|||||1. +3 11/12 2.-162 3.?63D0B758E2D502CC
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