First four terms of an A.P., are……………………whose first term is -2 an… - Vidyadip

MCQ

First four terms of an A.P., are……………………whose first term is -2 and common difference is -2.

A
-2,0,2,4
B
-2,4,-8,16
C
-2,-4,-6,-8
D
-2,-4,-8,-16

✓

Answer

First, four terms of an A.P., are $=\mathbf{2},-\mathbf{4},-\mathbf{6},-\mathbf{8}$ whose first term is -2 and the common difference is -2 .

Explanation:

Let the first four terms of an A.P are $a, a+d, a+2 d$ and $a+3 d$

Given that the first term is -2 and difference is also -2 , then the A.P would be:

-2,(-2-2),[-2+2(-2)],[-2+3(-2)] \

= -2,-4,-6,-8

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