Question

smantar sredhi padh ka hai 10th ka​

Answer 1

Answer:

1. First term, a = 3

Common difference, d = 2

15th term = a + 14d = 3 + 14 × 2 = 3 + 28 = 31

2.

First term, a = - 9

Common difference, d = - 5 + 9 = 4

nth term = 67

a + (n - 1)d = 67

- 9 + (n - 1)4 = 67

4n - 4= 76

4n = 80

n = 20.

3.

First term, a = 10

Common difference, d = 15 - 10 = 5

nth term = a + (m - 1)d

= 10 + (m - 1)×5

= 10 + 5m - 5

= 5 + 5m

Answer 2

Answer:

this is correct...............................