Question

please solve this question pg 7 qno20 maths section
entrance exam problen
http://www.fiitjee.com/aieee2012/aieee2012solutions.pdf

Answer 1

Please tell me what you already know about this type of problem and what you think you need to know to solve it. I'm very happy to guide you through the solution if you have already experienced this sort of problem before and can tell me what you need to know.

Answer 2

i understood the representation of the points in the two lines
but how did they find the the t and s value
can you tell the condition for intersecting lines in spacs

Answer 3

space

Answer 4

I believe I can help you with this. Have you on hand a reference book that might contain material on "symmetric equations of lines"? I'm still working with the other person, so there will be some delays in my responses.

Answer 5

i know the formula for distance between skew lines
i dont know what i should do in this problem

Answer 6

reply when you have time

Answer 7

The problem statement comes with a solution which I find to be pretty straightforward. I need for you to tell me what part of that printed solution is clear for you and what part is not. I'd prefer to build my responses upon what you already know.

Answer 8

findin t and s values

Answer 9

i don't know how to find t and s values

Answer 10

please help on this part

Answer 11

Have y ou solved systems of linear equations before?

Answer 12

yes

Answer 13

Would you know how to solve x + 2y = 5 simultaneously with -3x + 7y = 9?

Answer 14

yes of course

Answer 15

Give me a minute, please.

Answer 16

ok sir

Answer 17

You'll see in the solution that any point on one line is given by
( 2t+1, 3t-1, 4t+1 )
and that any point on the other line is given by
(s+3, 2s+k, s ).

As you well know, x=x, y=y and z=z at any point (of intersection) that the 2 lines have in common.

Therefore, 2t+1=s+3, and
3t-1=2s+k, and
4t+1=s

Think about this situation.
You have 3 equations in 2 unknowns, which means more info than strictly needed to solve the system.

Please try to find s and t.

Answer 18

i got it now sir thanks a lot sir
did nt think about the x=x part
again thanks a lot

Answer 19

Very glad that this discussion has helped you!
Is Bangalore a city or is it a region?

Answer 20

its a city silicon valley of india many it companies are here

Answer 21

I'll look that up. Of course, I've heard of Bangalore many times, but still don't know much about it.

Glad to be in touch with you. Do let me know when you have more questions.

Answer 22

yeah i preparing for my entrance exams(really important)
what do you think about the paper
exams in a month

Answer 23

this question from aieee 2012

Answer 24

I find it to be rather challenging! Much of the material on this entry exam was not even taught in my high school back in the 1960s. Expectations of students in terms of knowledge and performance seem to be higher in countries such as yours (at least in sophisticated cities such as Bangalore) than many of my former students have encountered. Of course there are always exceptions: there are very bright and capable US students also, but they're not representative of the usual student.

Answer 25

these exams are tough due to population of the country

Answer 26

i don't think its required to keep such tough exams

Answer 27

Well, when hundreds of thousands of students are expected to apply for positions at better universities, it makes sense to raise admissions standards so as to enroll students who are well prepared for and capable of challenging academics, don't you think? I believe Stanford recently accepted only 1-2 percent of applications for its freshman class.

Answer 28

Hope you'll try your very best to learn, understand, review and apply the math involved in the exam we've been discussing.

Answer 29

yes sir it must be morning there
its night over here

Answer 30

Yes, it's 0735 here. And in Bangalore?

Answer 31

i have to go now sir to eat dinner
and then study
thanks a lot sir for the help
see you again sir

Answer 32

its 9.07 pm

Answer 33

Bye, aadithya!

Answer 34

The thought of good Indian food makes my mouth water!