Math, asked by imtiyazkhannn9876, 6 months ago

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1 point
For an AP a=1, d=4 what is the value of n if tn=81

Answers

Answered by asrividya2005

2

Answer:

Step-by-step explanation:the value on n is 21

Step-by-step explanation:

given a=1,d=4,tn=81

tn=a+(n-1)d

81=1+4n-4

84=4n

n=21...

the value on n is 21

Hope it helps u...

Answered by anukriti1770

2

Answer:

This is the answer of your question

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