Math, asked by manojoshi43, 5 months ago

If 5 times of the 5th term is equal to 4 times of the 4th term of an A.P. , then the 9th term will be

Answers

Answered by utkarshgangwar401

1

Step-by-step explanation:

Atq

5a5 = 4a4

5(a + 4d). = 4(a + 3d)

5a + 20d = 4a + 12d

a + 8d = 0

a = -8d

a9 = a + 8d

a9 = -8d + 8d. (since a = -8d)

a9 = 0

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