17 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.12th ka i got Tr as 1/x^2+(2r-1)x+(r^2-r+1)
uske age 1+ab wle format me convert ni hora
13th i hve no idea i tried to simplify and get all the terms in tan^-1 but ;-; that doesnt seem to do much
,rotate
12th is sum to infinity ?
n hai shay
yup n hai
arctan(x+n)-arctanx bach rha mera
isme terms cancle kese hoge fir
ans kya hai final ?
let me check
mera finally yeh bach rha
Oh right right
Final ans bhi esi format me hai
first term is arctan(x+1)-arctanx
second is arctan(x+2)-arctan(x+1)
and so on
Yeah i get it
How did u simplify that Tr
i didnt
meine har term ko alag alag kholke check kia
that seemed like a better option cuz denominator easily 1-xy ki form mein aa rha tha
have u tried rationalizing denominator in 13th
I see
Let me try that
After rationalising im getting -1/nroot(n+1)+(n+1)rootn