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deepaksoni
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Asked: 2021-05-27T10:08:57+05:30 In:

Problem 1: For the following arithmetic progressions write the first term a and the common difference d: (iv) -1.1, -3.1, -5.1, -7.1, …………..

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This is the basic and conceptual question from Chapter name- Arithmetic Progression
Chapter number- 9
Exercise 9.3

In this question we have been given the arithmetic progression and we have to find the first term a and common difference d for that.

CBSE DHANPAT RAI publications
Class:- 10th
Understanding CBSE Mathematics
Question 1(iv)

class 10rd sharma
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    1 Answer

    1. Guru

      Solution :

      Given sequence is -1.1, -3.1, -5.1, -7.1, …………..

      ∴ First term is -1.1

      And, common difference = a2 – a1 = -3.1 – (-1.1) = -2.0

      ∴ Common difference is -2.0

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