Question

The first term and the common difference of an A.P are (-2) and (-2) resp. Find the next three terms.​

Answer 1

Answer:

Given a=6d=3

S

27

=

2

n

[2a+(n−1)d]

S

27

=

2

27

[2×6+26×3]

=

2

27

[12+78]

=

2

27

[90]

=1,215