106
this is what i feel
For each natural number k, let Ck denote the circle with radius k cm, and centre at the origin. On the circle Ck, a particle moves k cm in counterclockwise direction. After completing its motion on Ck, the particle moves to Ck+1 in radial direction. The motion of the particle continues in this manner. The particle starts at (1,0). If the particle cuts the curve cos-1(cosx) for the first time on circle Cn then n= ?
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11 Answers
11Use the fact that 3< \pi < 4.
I did this long back in Goiit.
Let me search for the link.....
24http://targetiit.com/iit-jee-forum/posts/simple-questions-4168.html
1yaar euree
asish is an intelligent guy......n u too[1]...he did not overlook the question i think u need to read it once more.it says curve is some trigo. func. not that x-axis one u gave link for[1]
106If the particle cuts the curve cos-1(cosx) for the first time on circle Cn then n= ?
this is the question eure..
if it was crossing x-axis for first time.. (i have solved that)
66@Asish, your work is correct. The value of n has to be 1 (if the question is as what has been given).