Math, asked by singhumar32, 8 months ago

The sum(-6)+0+(6)+....... to 13 terms is equal to *

Answers

Answered by ayushmaan0072

1

Answer:

390 is the Answer

Step-by-step explanation:

sn=n/2(2a+n-1*d)

=13/2(-12+12*6)

=13/2(72-12)

=13/2*60

=13*30

=390

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