1. Find the sum of following APs :
(1)2, 7, 12, ..., to 10 terms.
( 2 ) -37, -33, -29, ..., to 12 terms
(3)0.6, 1.7, 2.8, ..., to 100 terms.
1
1
1
to 11 terms.
(4)
9
15
12
10
(1)2, 7, 12, ..., to 10 terms.
( 2 ) -37, -33, -29, ..., to 12 terms
(3)0.6, 1.7, 2.8, ..., to 100 terms.
1
1
1
to 11 terms.
(4)
9
15
12
10
Answers & Comments
Step-by-step explanation:
1. 2, 7, 12,.........
here
First term, a = 2
common difference, d = 7 - 2 = 5
number of terms, n = 10
so required sum =
Rest parts are similarly solved
Answer:
4th is not clear
Step-by-step explanation:
rest of the answers are in photo...