Question

Which term of the progression -1, -3, -5, .... Is-39
(a) 21st
(b) 20th
(c)19th​

Answer 1

Answer:

20 tem of progression is 39

Step-by-step explanation:

an= a+(n-1) d

an=-1+(n-1) -2

an=-1-2n+2

-39=1-2n

-40=-2n

n=20

I hope it will help u frnd

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