Math, asked by elingracesurin, 7 months ago

72 +68+64 +....
+40
(Find n=? Sn=?)

Answers

Answered by suraj8988

1

Answer:

i don't know is the answer

Step-by-step explanation:

i + don't+know + is+the+answer

Answered by rajputayush886

0

Answer:

a1=72

d=4

an=0

an=a+(n-1)d

0‌‌=72+(n-1)4

0=72+4n-4

0=68+4n

4n=68

n=68/4

n=17

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