Question

find the 20th term of AP 7,3,-1,-5...​

Answer 1

Answer:

-69 is the answer

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Answer 2

Step-by-step explanation:

Given first term of A.P = 7

common difference = 3-7= - 4

so,20 th term = first term+(20-1)*common difference ( Using formula of nth term of an A.P)

=> 7+19*(-4 )= - 69

Ans. -69

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