Question

determine the AP whose third term is 5 and the 7th term is 9​

Answer 1

Step-by-step explanation:

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3rd term of the AP: a+2d = 5 …(1)

3rd term of the AP: a+2d = 5 …(1)7th term: a+6d = 9 …(2)

3rd term of the AP: a+2d = 5 …(1)7th term: a+6d = 9 …(2)Subtract (1) from (2)

3rd term of the AP: a+2d = 5 …(1)7th term: a+6d = 9 …(2)Subtract (1) from (2)4d = 4, or

3rd term of the AP: a+2d = 5 …(1)7th term: a+6d = 9 …(2)Subtract (1) from (2)4d = 4, ord = 1 and so a = 3.

3rd term of the AP: a+2d = 5 …(1)7th term: a+6d = 9 …(2)Subtract (1) from (2)4d = 4, ord = 1 and so a = 3.The AP is 3,4,5,6,….

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Answer 2

Answer:

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