Question

find n if 1 + 3 + 5+ 7 +
upto
n term = 225​

Answer 1

Answer:

As we can see here that we have to add first n odd natural numbers.

But according to formula, sum of first n odd natural numbers i given by n²

So,

$hence \: \: \: \: \: \: \: {n}^{2} = 225$

$= > n = \sqrt{225}$

$= > n = 15$

Hope it helps,

pls mark me brainliest