Question

FIND THE VALUE OF 5 1 / 3 - (-7)

Answer 1

Answer:

We take the first term =a=1, last term =l=25, common difference =d=2 and the number of terms =n.

Then, since it is an A.P. series,

n=dl−a+1=225−1+1=13.

Let Sn be the sum of n=13 terms

∴Sn=2n×(a+l)=213×(25+1)=13×13=169.

So the required sum =169.

hope it helps

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

51/3=17

17-(-7)

17+7=24