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24-07-2021
Mathematics

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Find the 20th term from the last term of the AP 34 , 32 30,.........., 10.

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Respuesta :

Аноним Аноним

24-07-2021

Answer:

-30

Step-by-step explanation:

Tn = a1 + (n-1)d = 34 + (-2)(n-1) = 34-2n+2 = 36-2n

hence,

10= 36-2n

2n = 36

n = 13

20 terms from the last term would be 13+20 = 33

T33 = 36-2(33) = -30

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