Math, asked by sakshamdhumma04, 5 months ago

If last term of the sequence -306, -300, -294, -288 .. is zero, then the sum of 10-middle most terms is

Answers

Answered by sardana26

3

Answer:

firstly find out no of terms

then 10 middle terms.

and apply sum formula

Attachments:

Answered by Anonymous

4

Answer:

Step-by-step explanation:

a=-306

d=-300-(306)=6

an=0

o=-306+(n-1)*6

n-1=306/6=51

n=52

middle most 10 terms are 22 to 31

T22=-306+21*6=126-306=-180

T31=-306+30*6=-306+180=-126

Sum =(t22+T31)/2

=10(-180+126)/2

=-306*5

=-1530

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