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Need Help with Maths [Functions & Trigonometry]

Hello, I need help for this question in Nov 2001 P1 Q3, I'm trying really hard to think of the solution but to no avail. Can someone please thoroughly explain this to me: Given that f(x)=cos x, for the domain 0=<x=<k, find the largest value of k for which f has an inverse.
- HybridStasis
- Thread
- Sep 11, 2012
- Replies: 8
- Forum: A-Levels

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