Question

Find the first four term of an AP whose first term is -2and common difference is -2

Answer 1

Answer:

The first four terms are -2, -4, -6 and -8.

Step-by-step explanation:

Given,

a = -2 ; d = -2

First term      :  a = -2

Second term:  a + d = -2 + (-2) = -4

Third term   : a + 2d = -2 + 2(-2) = -6

Fourth term: a + 3d = -2 + 3(-2) = -8

Hence, the first four terms are -2, -4, -6 and -8.

Answer 2

nth term =a+(n-1)d

1st term =-2

2nd term=-2-2=-4

3rd term = -2+(3-1)(-2)=-6

4th term= -2+(4-1)(-2)=-8

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