Question

單項(xiàng)式-

1

2

a²b⁴的系數(shù)是______．

Answer 1

-

1

2

a²b⁴=-

1

2

•a²b⁴，則該單項(xiàng)式的系數(shù)是-

1

2

．
故答案是：-

1

2

．