Spheres isn’t given in Advanced syllabus but given in Arihant. So it is in syllabus or not? Neither taught to us but i searched internet and found that it is taught in many coachings. I am genuinely confused. Haven’t studied it till now.

Well what do you mean by spheres?

Not in syllabus but my sir told me we can study ourself easily using circles analogy

It is a small concept in 3D geometry

No need to study… Its neither in Jee mains or adv

Bro my faculty told sphere’s isn’t there for JEE

Its taught to us in coaching , its like circles only but with 1 extra vector.

It only has radius , plane as tangent and some small concepts.

Bro have u seen 3D weightage for last 5 years , its usually between 0-3% of complete maths paper , dont worry of spheres and all.

It’s a topic given in Session-4 of 3D-Geometry in Amit Agarwal

I connected the formulas with 2D. It was a small topic.

Thanks guys. I studied basic of it and won’t focus any more on that.

Vector-3D is important though, right? 3-4 questions every year. 7 in 2013.

Vector is imp , i was talking of 3-D

See for yourself , 3D has 0% for 2018,2019 and 3% in 2017

And 5% in 2016 so its weightage is probably decreasing each year.

Bansal subjective exercise.

Can you send me photos of it please?? I need some material to solve for Vector and 3D…

VEC&3D_12th (2018C)_E.pdf (6.4 MB)

Why photo when you have pdf? Bansal is proper closed so I dont mind circulating pdfs. There’s a rank booster at last for extra tough questions.

Crash Course for Vector 3D: 10 Vector _ 3-D_WS-1_E.pdf (240.1 KB) 10 Vector _ 3-D_WS-1_FC.pdf (127.0 KB) 11 Vector _ 3-D_WS-2_E.pdf (124.3 KB) 11 Vector _ 3-D_WS-2_FC.pdf (124.9 KB)

These questions must be sufficient.

wait what?

Why be a king when you can be a god.

- Eminem