Math, asked by aartimane0404, 7 months ago

write down 20th term of 1,-1,1,-1

Answers

Answered by rst009

1

Answer:

the answer will be

-1

as all odd positions will be 1

Answered by TEJPRATAPSINGH2725

0

Answer:

1

Step-by-step explanation:

a = 1

d = a2 - a1

= -1+1 = 0

a20 = a + 19d

= 1 + 19*0

= 1 + 0

= 1

So a20 = 1

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