Question

Question 5
The first four terms of an AP whose first term is – 2 and the common difference is – 2 are

A) – 2, 0, 2, 4
B) – 2, 4, –8, 16
C) – 2, – 4, – 6 , – 8
D) – 2, – 4, – 8, – 16

Answer 1

Given, the first term, a = - 2 and the common difference, d = -2.
The first four terms of the AP will be a, a + d, a + 2d and a + 3d.
Then the first four terms of the AP are :
$a,a+d,a+2d,a+3d$
$=-2,-4,-6,-8,-10$