Question

Check Wether the sequence whose nth term is an AP (10th NCERT Syllabus)

image is given, plz give me a correct answer

Answer 1

Hey ! Here is your answer :-

it is given that ,

An = 5n-7

Put the value of n ( = 1 , 2 , 3 , 4 )

A1 = 5-7 = -2

A2 = 10-7 = 3

A3 = 15-7 = 8

A4 = 20-7 = 13

yes , they are in AP

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Answer 2

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