Recent content by lightningz

thanks.i think i understood already =) such a nice guy you are..:wink:

sorry.i never heard of fixed point. well the intersection point of the two graphs f(x)= cos (x) and g(x)=x..i got it by plotting in my calculator..which is the value for limit of cos^n(x),(x--->infinity), is that point called fixed point? thanks a lot for helping all the time =)

the graph become smaller and smaller(ie converging to a certain value) and when n=infinty, it actually becomes a straight line. in this case, limit of cos^n(x),(x--->infinity), for all value of x is that particular value..that's what i got...urm..is that what the question want?=)

oh yeah...i tot we need to develop another different formula or method to calculate the value rather than using the calculator and cos cos cos.

Homework Statement Let f(x)=cos (x). Denote f^2(x) = ff(x), f^3(x)=fff(x) and so on. For x=100 radians, find f^n(x) for n=1 to 20 Develop a calculator technique to find f^n(x) for any given value of n. Hence, find correct to 7 decimal places, the limit of f^n(x) for x= 100 radians and n...