without adding find the sum of 1+3+5+7+9+11+13+15+17
Answers
Answered by
3
=1+3+5+7+9+11+13+15+17/9
=81/9
=9
=81/9
=9
jatin143:
how u can find this. you can do it without adding
now i am dir
did
see it
ok
chatty it's simple we can see that they r first 9 odd no. s and we have to just find its square which is 18
ok
Answered by
2
n(n+1)/2
or. n=Last nomber
=17(17+1)
= 17×18
236
or. n=Last nomber
=17(17+1)
= 17×18
236
it's wrong dude
to sahi kya hoga
Similar questions