Question

Find the sum of the following : 34+32+30...+10

Answer 1

Answer:

Step-by-step explanation:

that's is the term of A.P

So, we calculate the sum of A.P

We have,first term(a)=34

Common difference(d)=-2....[32-34=-2]

Total terms(n) =13

Now we calculate sum of A.P

Sn=n/2[2a+(n-1)d]

=13/2[2×34+(13-1)×(-2)]

=34×13-12×13

=442-156

=286

So, the sum of this series is 286