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Common Difference

If the follow...

Question

If the following sequence is an AP, then find the common difference.
$2, 4, 6, 8$

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Solution

$\begin{matrix} 2, 4, 6, 8...... a = 2 d = t_{2} - t_{1} = 4 - 2 = 2 d_{2} = t_{3} - t_{2} = 6 - 4 = 2 d_{3} = 8 - 6 = 2 ∴ 2, 4, 6, 8...... i s a n A . P w i t h c o m m o n d i f f e r e n c e (d) = 2 \end{matrix}$

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