Recent content by neik

if every were only half as perfect as you then we might not need this home work area.

thanks every one, i got the answer thats why i have to ask 'coz its too good to be true. i don't think this question hurts you, does it? its not your fault if you don't understand the question; but it is if you don't know how to ask. Besides, i only ask for hint and not the answer.

Devise a recursive algorithm for finding x^n \bmod m whenever n, x, and m are positive integers, based on the fact that x^n \bmod m = (x^{n-1} \bmod m \cdot x \bmod m) \bmod m can anyone give me some hints? i don't know where to start :frown: thank you

i can solve question (a) but not (b) i totally don't know where to start, can anyone give me a some hints?

can some one tell me what is the mass of this singly charged uranium-238 ions? :rolleyes: thanks in advance.

I did like this: Let u=\arctan{x} \Rightarrow du=\frac{dx}{1+x^2} Let dv=\frac{x}{(1+x^2)^2}dx \Rightarrow v=-\frac{1}{2(1+x^2)} \int{udv}=uv-\int{vdu} =-\frac{\arctan{x}}{2(1+x^2)}dx+\frac{1}{2}\int{\frac{dx}{(1+x^2)^2}} and then I'm blocked here: \int{\frac{dx}{(1+x^2)^2}...

Evaluate the integral: \int^{\infty}_{0}\frac{x\arctan{x}}{(1+x^2)^2}dx can anybody give me some hint? :cry: Thanks in advance

hi, thanks for responding but i still don't know how to calculate the "total profit" any ideas?

Hi everybody, I have given an equation to calculate the final Value (FV) of an investment as follows: FV= Principal*(1+{R/N})^{NT} Where: Principal = initial investment amount, R = annual interest rate, N = number of times compounding is performed per year; this can be quaterly (4...

oki thanks a lot :smile:

i guess what you'r trying to say is there is no current across the central capacitance ? but i still don't understand why

http://img.photobucket.com/albums/v64/neik7/asg.jpg this is neither a parallel nor a series circuit i duno how to find the equivalent capacitance from a to b can anyone give me some hint ? :cry: thanks in advance

Does anyone know how to solve this?

but why? :confused:

Help me please! :confused: For the function f whose graph is given, arrange the following numbers in increasing order and explain why: 0 f'(2) f(3) - f(2) 1/2[f(4) - f(2)]