Question

if s4=16 and s5=12 then find the value of an
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Answer 1

Answer:

Before we start solving this question, let us know the meaning of S5 and S4.

So, here, S5 refer to the sum of the 1st, 2nd,3rd, 4th and 5th term and S4 means the sum of 1st,2nd,3rd and 4th term.

Now,let us proceed to the solution.

Sol. S5 = 1st term + 2nd term +3rd term + 4th term + 5th term = 35 ————(i)

S4 = 1st term + 2nd term + 3rd term + 4th term = 22 ————(ii)

Subtracting (ii) from (i), we get

5th term = 1

hope it helps

Answer 2

Answer:

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