2 ×[-( 3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]2 ×[-( 3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]=?

问题描述:

2 ×[-( 3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]
2 ×[-( 3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]=?