Question

Whats the 100th term of 1,3,5,7,9

Answer 1

$\huge\boxed{\fcolorbox{red}{blue}{Answer}}$

What is the nth term of 1, 3, 5, 7, 9, and 11?

S=1+3+5+7+9+……………………+Tn………………..(1)

adding 2 in each term

S+2n= 3+5+7+9………………………+Tn+Tn+2…….(2)

subtracting (1) from (2)

2n=-1+Tn+2

Tn=2n-1

$\boxed{\fcolorbox{red}{blue}{Hence the nth term=2n-1}}$