If a and b are non-zero real numbers and (1-99a)(1+99b)=b,then the value for 1／a-1／b+1 is( )
If a and b are non-zero real numbers and (1-99a)(1+99b)=b,then the value for 1／a-1／b+1 is( )
(a)1 (b)100 (c)-1 (d)-100
(a)1 (b)100 (c)-1 (d)-100
英語人氣：548 ℃時間：2020-05-03 04:25:20
優(yōu)質(zhì)解答
consecutive odd numbers 連續(xù)的奇數(shù) value(mathematics 數(shù)) number or quantity represented by a letter 值; 數(shù)值 b的三次方=1331 b就是11 a是9,c是
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