Math, asked by mehek38, 1 year ago

the 7th term of an A.P. is -4 and its 13th term is -16. find the sum of its first 19 terms

Answers

Answered by Booooooom

1

-238.75
I hope according to the formula sn =n/2(2a+n-1)(d)

Answered by Shaunak2409

0

I hope this will help!

Previous Question

Next Question

Similar questions

Math, 8 months ago

5. Find out which one is bigger. 1 1 1 1 x 4 – or 7 or 72:34 2 7 2 2 a.

Math, 8 months ago

Represent these number 9/7 on the number line ...

History, 8 months ago

What was Marianne and Germania? What was the importance ofthe way in which they were portrayed?

India Languages, 1 year ago

what is english meaning of लज्जित...

History, 1 year ago

Who was the first Indian Viceroy?

English, 1 year ago

how to write a letter about how you spent your holiday...

Computer Science, 1 year ago

Explain the ways to delete the files...

English, 1 year ago

pls send sample notice writing for class 8...