Math, asked by shinde25, 6 months ago

plzz solve this fast and PLZZZZZZZZZZ send the pic of the answer... IF n=75 , a=1 ,1 =149 , FIND S75

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Answered by Anonymous

3

Answer:

Sn=n/2(a+l)

S75=75/2(1+149)

S75=75/2(150)

S75=75*75

S75=5625

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