a=1, d=1, l=π―
Sn=n(a l)/2 = π― (1 π―)/2= 50Γ101 = 5050. i.e. Your answerrrrrrrrrrrrrr
Written on May 19, 2019, 9:02 p.m.
Written on May 19, 2019, 9:02 p.m.
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