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Rajan@2021
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Find the 8 th term of the A.P. whose first term is 7 and common difference is 3

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An important question from ML Pulication of Class 10 from Arithmetic Progression Chapter.Find the 8th term of the A.P. whose first term is 7 and common difference is 3
Class 10 ML Publication, Chapter 9, Arithmetic Progression

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1 Answer

  1. ​

    a+(n−1)d
    T18​=a+(18−1)d
    −5=a+(18−1)(−3)
    −5=a+(17)(−3)
    −5=a−51
    a=51−5
    a=46​
    Therefore, first term a=46

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