Question

 The 8 th term of an Arithmetic Sequence is 25 and 16 th term is 49. Calculate the following

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Answer 1

Answer:

answer in attachment

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

A8=a+7d =25____(i)

a16=a+15d=49___(ii)

subtracting i and ii eqn

a+7d =25

a+15d=49

- -. -

-8d=-24

d=3

and a = 4