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Polar Form
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The very important Polar Form of the line has been discussed in this video along with the examples and a very good question has been given for the homework too.

Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IIIrd Year UG, IIT Bombay | YouTuber with over 127k subscribers at Sachin Rana [IITB] | Organic Chemistry & Maths Expert.

U
Unacademy user
sir I have the only option for The Hindu News, that is your DNA. so please upload the DNAs of 7th and 8th January.
both of the points should lie on a line
Product of the roots of the quadratic 9r^2-80r-400=0, i.e. (CA)*(CB) = 400/9
Aditya Singh
a year ago
-400/9
Sachin Rana
a year ago
Correct. Very good. The question should have involved the modulus of the product but it is quite clear as the lengths are taken into consideration, so we get the positive answer.
Yes sir
At
Aryan tripathi
2 months ago
abantika u really are a genius
At
Aryan tripathi
2 months ago
how do u solve these complex problems so easily
Abantika Karmakar
2 months ago
Thank you so much aryan :) ... it's because I have attended coaching since I was in class 11.. also I'm a dropper that't why I have got more time to practice. Keep solving more and more questions, after sometime even you will get into the habit of solving even the most difficult sums. Good luck!!
At
Aryan tripathi
2 months ago
is unacademy lectures sufficient for bitsat
Abantika Karmakar
2 months ago
Yup.. bitsat just requires speed with accuracy. keep all your concepts clear and follow all the lessons nicely.. also most of the questions in chemistry is from NCERT, maths is direct formula based and physics too. If you are preparing for mains then it's going to help for bitsat too.
At
Aryan tripathi
2 months ago
so that means if I complete full course from unacademy and solve arhiant prep guide ...then I have good chance of cracking bitsat ??
Abantika Karmakar
2 months ago
Sure.. you will score very well.
At
Aryan tripathi
2 months ago
thnx
Abantika Karmakar
2 months ago
welcome .
hey guys, do follow her or watch her courses https://unacademy.com/user/khandelwal.megha16 i am not promoting her , but she is also doing hardwork. Followers can boost her energy, She is best for inorganic chemistry.
Bhargav Gohil
a year ago
sachin sir if you dont mind.
Sachin Rana
a year ago
Yes, correct.
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