Math, asked by athirags941997, 5 months ago

The sum of first 9 terms of an arithmetic sequence is 45 and the sum of first 18 term is 171.what is the sum of it's 10th to 18th term

Answers

Answered by gayathri345

3

Step-by-step explanation:

s9=45. x1+x18=171/9

x10=45/9. =19

= 5

so x10+x9=19

substitute value of x10

5+x9=19

x9=14

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