Question

What is the series using summation notation?

36+69+102+...+267

Answer 1

Just keep adding 33 and you will get the answers

Answer 2

first term =36

second term=69

So common difference=69-36=33

checking. 69+33=102

36=3+33

so the series in AP Becomes as...

(3+33) ,(36+33) ,(36+2(33)) ... (36+7(33))

So The Answer is...

(refer above attachment.)

Hope it helps...

Regards,

Leukonov/Olegion.