5C3 क य ह ?
10 nC_r = (n!) / (R (nr)! 5C_3 = (5!) / (3 (5-3)! = (5!) / (3! Xx2!) = (5xx4xcancel (3) ) / ((2!) Xxcancel ((3!) = 20/2 = 10
10 nC_r = (n!) / (R (nr)! 5C_3 = (5!) / (3 (5-3)! = (5!) / (3! Xx2!) = (5xx4xcancel (3) ) / ((2!) Xxcancel ((3!) = 20/2 = 10