Find in terms of pi, the solutions of the equation:
Sin(5X) + Sin(X) =0
for the x interval, 0<=(X)<pi
This is straight off a Solomon paper, and was wondering if a question like this can come up in an edexcel paper for C3 as I havent seen a question like it in any past papers.
Why do a pointless cocky solomon paper for an edexcel paper?
Yh I'm not completely sure about the trig questions, but it's what I did in S1 and C1
Same I usually do put in extra ones if I'm not sure tbh, hmmm. When I do the newer papers (Jun 11/Jan 12) I'll have another look and see what it says on the markschemes (and the additional notes) and let you know
Same I usually do put in extra ones if I'm not sure tbh, hmmm. When I do the newer papers (Jun 11/Jan 12) I'll have another look and see what it says on the markschemes (and the additional notes) and let you know
Ahh, yeh I thought it was to do with that, thanks.
I always seem to get these range/domain questions wrong. What would you say is the best method to go about them, (and check them if possible)?
Cheers
I don't think the textbook gives enough emphasis on boundary conditions.
When they put a boundary condition in a function definition, in this case g is not defined when x=1, they really want you to spot it and understand its significance.