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Shafayat sorry bro for late reply , ptcl ki main line
Kat gyi mere ilake me islye i wasn't on the internet
Yes the same applies for the cos curve but a cos curve is kinda different for obvious reasons
This is other timezone is lye me ne kaha out of syllabus convergent means any thing less than original literraly
In maths we take it as less than 1 (<1) in this q it means common ratio is less than 1 (r<1)
Now he says first term is 1 means a=1
Second term is 1/3 tan^2 theota
For finding r u can divide any 2 consecutive terms
So her it goes like this
2nd term /1st term <1
1st term is 1 so it will go like this
1/3 tan^2 theota <1
Tan^2 theota <3
Taking sq root both sides
Tan theota<plus minus under root 3
Finding answers
For plus under root 3
As tan is +ve in 1st and 3rd
60,240
For tan -ve tan is in 2 and 4
120,330
I did this in degrees take tumhe smj aye wrna confuse hojate tum bi aur me bhi
Ab hamare pas values hyn 60,120,240,330 lekin usne mangi sirf 1/2 pie tk hyn means 90 degree tak
So we will chose 60 only
Thats pie/3
So it goes
Theota =pie/3
Examiner may penalise for using degreees in a radian question
But i find this easy -_-
Kuch na smj aye to give me
A ring03116116440
Thnx It really Helped
