Question

find the common difference d and write three more terms -1.2,-3.2,-5.2,-7.2,........

Answer 1

Hi

Here is ur answer

1.a = -1.2

2.a + d = -3.2

3.a + 2d = -5.2

4.a + 3d = - 7.2

5.a + 4d = ?

6.a + 5d = ?

7.a + 6d = ?

To find common difference we have to sub 1 from 2

a2 - a1 = -3.2 - (-1.2)

          = -3.2 + 1.2

           = -2

Therefore, d = -2

Then we have to find three more terms

Therefore, a + 4d = -1.2 + 4 (-2)

                             = -1.2 - 8

                             = -9.2

a + 5d = -1.2 + 5(-2)

          = -1.2 - 10

          = -11.2

a + 6d = -1.2 + 6(-2)

          = -1.2 - 12

          = -13.2

The other three terms are -9.2 , -11.2 , -13.2......

Hope it helps U