How to solve cube roots question ?
Example :
x^3 - 100x^2 - 7800x + 16300 = 0
I had think long time but still cannot find the way. Besides trial an error, is there anyway to solve this problem ?
thank you.
How to do this problem ??
Write a complete C program that can be used as a text file analyser. The analyser program should be able to combine two text files and provide the statistics of the following items in a text file: number of alphabetical letters (A to Z and a to z), characters (without...
Practise make perfect ! For me , the way to get good result in calculus is practise more . Maths do not requires memorizing but undertanding and practise.
Cheer..
hehehe..in my opinion , as the process on solving the mathematic problem may take long solution and applying many formula . To avoid confusing and easy to solve , so the mathematicians introduce those symbol to make the job easy.
e.g :
pai = 3.142...
a x b = a.b = ab ( multiplied )
.
a...
let me try
sin (4x) = 4 sin x cos *3 x - 4 sin *3 ( x ) cos ( x)
let 2x = X
sin 2X = 2 sin X cos X
=2 sin 2x cos 2x
=2 [( 2sinx cosx ) ( cos*2 x - sin *2 x ) ]
=2 [ 2sinxcos*3 x - 2sin*3cos x ]
= 4sinx cos*3 x - 4sin*3 x cos x