Question

Questions:-

(i)Identify the sequence 3,-3/2,3/4,-3/8,...
.
(ii)Write the 5th term of the G.P 5,2,4/5,...
.
(iii)Which term of the A.P 1,5,9,... is 81?

Answer 1

ANSWERS = (i)G.P (ii)T5=16/125 (iii)n=21

Answer 2

so the 1st part is G.P

Answer 3

What should i do in the 2nd one?

Answer 4

b.Here,Common ratio is 2/5
to find 5th term
T5=a*r^(5-1)

Answer 5

and whats the formula for 3rd part

Answer 6

t=a+(n-1)d

Answer 7

thanks

Answer 8

here t=81,a=1,n=?,d=4