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Question

The first four term of an AP whose first term is 2 and the common difference is 2 are

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

The correct option is A 2,0,2,4

Given. First term, a=2 common difference, d=2

Let T1.T2,T3 and T4 be the first, second and third terms of AP

We know that,


Tn=a+(n1)d

T2=2

and T2=2+d

=22

=4

and T3=2+2d

=24

=6

=26

=8


So,-2,-4,-6,-8 are the required terms of AP



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