Math, asked by PoibiangmiTalang, 1 year ago

If the 7th term of an A. P. is 1/9 and the 9th terms is 1/7,find it's (63)rd term. ​

Answers

Answered by tommy15
0

Step-by-step explanation:

term7=1/9. term 9=1/7

a+6d=1/9-(1) a+8d=1/7-(2)

(1)-(2)

a+6d=1/9

a+8d=1/7. 1/9-1/7=7-9/63

=-2/63

- - -

-2d=-2/63

d=2/63.1/2

d=1/63

From (1),a+6d=1/9

a+6.1/63=1/9

a+6/63=1/9

a=1/9-6/63

a=7-6/63

a=1/63

term 63=a+62d

=1/63+62.1/63

=1+62/63

=63/63

=1

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