Math, asked by hiteshupadhyay1031, 9 months ago

Third term of an AP is 8 and the 17th term is 51/2. The 23rd term

Answers

Answered by SahilKumar1406

3

Answer:

3rd term=a+(3-1)d=8

a=8-2d--------------(1)

17th term=a+(17-1)d=51/2

8-2d+16d=51/2

14d=51/2-8

14d=35/2

d=35/2×(1/14)

d=5/4

a=8-2(5/4)

=8-5/2=11/2

23rd term=11/2+(23-1)5/4

=11/2+(22)(5/4)

=11/2+55/2=66/2=33

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