OMTEX CLASSES: For an A.P. t3 = 8 and t4 = 12, find the common difference d.
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For an A.P. t3 = 8 and t4 = 12, find the common difference d.
For an A.P.
t
_{3}
= 8 and t
_{4}
= 12, find the common difference d.
Ans.
t
_{3}
= 8 and t
_{4}
= 12 [Given]
d = t
_{n}
- t
_{n – 1}
∴ d = t
_{4}
– t
_{3 }
= 12 – 8 = 4
∴ The common difference is 4.
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