Question

Find 99th term of the series 31/4,19/2,45/4

Answer 1

a1= 31/4

d= 19/2-31/4= -7/4

a99= 31/4 + (99-1)×(-7/4)

= 31/4 +98(-7/4)

= 31/4 +( - 686 /4)

= 31/4 - 686/4

= -655/4

I hope it may be help you

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Answer 2

Answer:

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