Question

please say the accurate answer

Answer 1

Mark it as Brain list

Answer 2

Just look guys....
first term = a
difference = double therefore, 2(a) = 2a
therefore nth term...
formula = a+ (n-1)d
therefore, just put values..
= a+(n-1)2a
= a + 2an-2a
= 2an - a
= a(2n -1)
Here is ur answer bro/sis

Plz mark it as brainliest