Question

5/2, 5/4, 5/8,......,t20,tn

Answer 1

Answer:

=5/2 , = 5/4-5/2=-5/4

= +(-1)

= 5/2+(20-1) -5/4

= 5/2+(19)( -5/2)

= 5/2-95/4

= (10-95) /4

= -85/4