Question

n-1,n-2,n-3 ......an=​

Answer 1

Use an=a+(n-1)d

a= n-1

d=(n-2)-(n-1)

U will get the value of an

Hope u got it..

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Answer 2

-Hey there!

-Here is the answer for your question :

an = a + (n-1)d

d = n-2-(n-1)

= n-2-n+1

=-1

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•Hope it helped you!

•Mark as brainliest, please!