Question

Find value of 6°(7^(1) - 5^(9)+ (5^(0)-3^(0)​

Answer 1

Answer:

169

Step-by-step explanation:

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=

d

l−a

+1

=

2

25−1

+1

=13.

Let S

n

be the sum of n=13 terms

∴S

n

=

2

n

×(a+l)

=

2

13

×(25+1)

=13×13=169.

So the required sum =169.