Question

find the 15 term of AP 1,3,5.......is​

Answer 1

Step-by-step explanation:

ANSWER

Given series is 1,3,5,.....

We know, sum =

2

n

[2a+(n−1)d]

Therefore, sum to 15 terms of 1,3,5,.... is

S

15

=

2

15

[2(1)+14(2)]

=

2

15

(2+28)

=15[15]

∴ Sum =225

Answer 2

Answer:

an=a+(n-1)d and mil jayaga

Step-by-step explanation:

a first term

n number of term u want to find

d common difference