Question

Find the sum of the following APs:
2.7.12. ... to 10 terms.
in) -37.-33.-29...
0.6.1.7.2.8,..., to 100 terms.
15 12 10 vrv-psem-ocp​

Answer 1

Answer:

n is 10

Now Sn is n/2 (a+l)

An =a+(n-1)d

=2+45=47

now=

S10=

10/2(2+47)

=5+49=

54.