P( - sin ( b-a) , -cosb) Q ( cos(b-a) , sinb) and R( cos ( b-a + c), sinb)
where a , b , c lie between (0 to pie/4) .
Then:
(A) P satisfies RQ
(B) Q satisfies PR
(C) R satisfies PQ
(D) All are collinear.

Question

P( - sin ( b-a) , -cosb)   Q ( cos(b-a) , sinb)   and R( cos ( b-a + c), sinb)
where a , b , c lie between (0 to pie/4) . 
Then:
(A) P satisfies RQ
(B) Q satisfies PR
(C) R satisfies PQ
(D) All are collinear.

anonymous · Answer

0 and pie/4 are not included in the interval.

anonymous · Answer

interesting question.... do you have the answer?

anonymous · Answer

No..

anonymous · Answer

What does P satisfies RQ means? P is on the line RQ?

anonymous · Answer

Yup...thats what it means. And I solved this question...so if you guys need to know, I can post it.

anonymous · Answer

D?

anonymous · Answer

lol..answer is ABCD.
Solve it by section formula. You'll get the answer.

anonymous · Answer

I know that's why I said D, and I don't think you even need to solve it, presuming the question is right. Every option has the same meaning.