已知(1﹣x) 5 =a 0 +a 1 x+a 2 x 2 +a 3 x 3 +a 4 x 4 +a 5 x 5 ,则(a 0 +a 2 +a 4 )(a 1 +a 3 +a 5 )的值等于( )
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举一反三
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