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