Mathematics: Post your doubts here!

[Thought blocker]

did you do the question i gave you?

I tried, but I couldn't make out. :'( Give me solution if you have!

 

[ZaqZainab]

I tried, but I couldn't make out. :'( Give me solution if you have!

This came in my exam and even i couldn't figure it out i thought maybe Suchal could :/
anyways here

 

[Suchal Riaz]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_32.pdf
Can anyone help me I am having problem in 9 (b) my answer for value of z is 4.82

 

[Thought blocker]

View attachment 39727

-_- P3 solved ?

 

[Thought blocker]

This came in my exam and even i couldn't figure it out i thought maybe Suchal could :/
anyways here View attachment 39728

Thanks a lot Zainab

 

[Suchal Riaz]

this is a better diagram:

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_32.pdf
Can anyone help me I am having problem in 9 (b) my answer for value of z is 4.82

 

[Suchal Riaz]

This came in my exam and even i couldn't figure it out i thought maybe Suchal could :/
anyways here View attachment 39728

i asked you if there is anything else to be known. you said nothing. now you say that ps and qp are parallel. that was cheating, right?

 

[Suchal Riaz]

did you do the question i gave you?

with the insufficient information it was impossible to be done.

 

[Suchal Riaz]

-_- P3 solved ?

yes. i solved a p3 question. :')

 

[Thought blocker]

YOU ARE REALLY GREAT!

 

[sumeru]

How do we find out the perpendicular distance from a point with a position vector P to a line??
P.S. the equation of the line is given.

Will you post that vector question again?

 

[ZaqZainab]

with the insufficient information it was impossible to be done.

That was the question will all the information you needed to solve the question :/

 

[ZaqZainab]

i asked you if there is anything else to be known. you said nothing. now you say that ps and qp are parallel. that was cheating, right?

ps and pq are not parallel :/
you need to make a line to which PQ is parallel to that not given in the question you are suppose to figure that out

 

[Suchal Riaz]

ZaqZainab i am sorry can you please explain that question again
i still don't understand it.
i was never good at these kinds of question.

 

[daredevil]

Will you post that vector question again?

I think this was the question... or otherwise it is a very similar one

 

[sumeru]

View attachment 39730

I think this was the question... or otherwise it is a very similar one

 

[ZaqZainab]

ZaqZainab i am sorry can you please explain that question again
i still don't understand it.
i was never good at these kinds of question.

don't be sorry
the question is find angle pqr and as i mentioned above PS and RQ are radius
so tangent SR meets small circle at S and the big one at R
that is why SP and RQ are parallel this is'nt mentioned in the question you need to figure it and and now you nee to make a line which parallel to PQ so you get a parallelogram once you have one you will get the rest.....
the only thing tricky in this question was making the line

 

[Suchal Riaz]

don't be sorry
the question is find angle pqr and as i mentioned above PS and RQ are radius
so tangent SR meets small circle at S and the big one at R
that is why SP and RQ are parallel this is'nt mentioned in the question you need to figure it and and now you nee to make a line which parallel to PQ so you get a parallelogram once you have one you will get the rest.....
the only thing tricky in this question was making the line
View attachment 39731

okay got it.
it will be parallel because sp and qr are both perpendicular to SR. got it. thanks.

 

[ZaqZainab]

okay got it.
it will be parallel because sp and qr are both perpendicular to SR. got it. thanks.

exactly

 

[Suchal Riaz]

exactly

actually the diagram was a bit misleading. but i appreciate the efforts that you put into it. really learned something. thanks.