Math, asked by narayan78, 1 year ago

question no. 6 and with that also verify it please ??

Attachments:

diyanagpal16: Sum - 6973

ambuunicon1pdujb2: Yes he is right

ambuunicon1pdujb2: I can explain

narayan78: yes you are right

ambuunicon1pdujb2: Let them stop writing

narayan78: i am only want to check everyone

ambuunicon1pdujb2: I will post a pic

narayan78: hahaha

ambuunicon1pdujb2: Then u can understand

diyanagpal16: I'm a she* lolol

Answers

Answered by bhagath13

hey mate here is your answer
a=17, an=350, d=9
a+(n-1) d=an
17+(n-1) 9=350
(n-1) d=350-17
(n-1) 9=333
(n-1) =333/9
n-1=37
n=37+1
n=38
sn=n/2(a+an)
s38=38/2(17+350)
s38=19(367)
therefore,
s38=6973
hope it helped you
please mark me as a brainliest

bhagath13: please mark me as a brainliest

bhagath13: thanks bro

Answered by sayyedowais786

a=17, tn=350, d=9
Tn=a+(n-1)d
tn=17+(n-1)9
350 = 17 + 9n - 9
350= 8 + 9n
350 - 8 = 9n
342 = 9n
342/9 =n
38 = n

There are 38 terms

Sum of T38

Sn = n/2(2a+(n-1)d)
S38 = 19(2 * 17 + (38-1) 9)
= 19(34 + (37*9))
=19(34+33)
=19 * 64
=12,16

Pls mark me as brainlist

bhagath13: what 37×9=33

bhagath13: it is wrong

sayyedowais786: yeah I saw it that I added only 33

sayyedowais786: it's 34+333

bhagath13: glad you understood your mistake

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