Question

simplifique a) 7!/5! b) 10!/6!=5/3. urgente

Answer 1

a) 7!/5! = 7.6.5.4.3.2.1/5! = 7.6.5!/5! = 7.6 = 42 ; b) 10!/6! = 10.9.8.7.6!/6! = 5040