Question

What will be the first term 'a' of an A.P. whose 6th term is equal to the sum of its first 6 terms.

Answer 1

Answer:

0

Step-by-step explanation:

The gernal form of A.P is a

n

=a+(n−1)d

5=a+(6−1)d=a+5d

9=a+(10−1)d=a+9d

solving the two we get

d=1

a+5∗1=5

a=0

Answer 2

Answer:

The gernal form of A.P is a

n

=a+(n−1)d

5=a+(6−1)d=a+5d

9=a+(10−1)d=a+9d

solving the two we get

d=1

a+5∗1=5

a=0