Math, asked by kaushalritik95, 11 months ago

. निम्नलिखित समांतर श्रेढ़ियों का योग ज्ञात कीजिए
02.7.12.....10 पदों तक​

Answers

Answered by as199684204
6

n= 10

a = 2

Sn=?

Solve:d = 7-2=5

Sn=n/2{2a+(n-1)d}

=10/2{2×2+9×5}

=5{4+45}

=5×49

=245.

Therefore, the sum is 245.

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