Question

find the sum of odd number from 1 to 233​

Answer 1

Hey Mate...

Hope it helped:-):-):-)

Answer 2

HEY MATE HERE IS YOUR ANSWER--

$an = a + (n - 1) \times d$

AP WILL BE

1,3,5......233

A=1

D=2

putting in the formula

$233 = 1(n - 1) \times 2 \\ \\ 233 - 1 = 2n - 2 \\ \\ 232 + 2 = 2n \\ \\ \frac{234}{2} = 117$

the sum will be

$sn = \frac{n}{2}(2 \times a + (n - 1) \times d \\ \\ sn = \frac{117}{2}(2 + 116 \times 2)$

$58.5 \times 342 \\ \\ 13689 = sn$