Trifunction Derivatives problem

  • Thread starter Thread starter cracker
  • Start date Start date
  • Tags Tags
    Derivatives
cracker
Messages
37
Reaction score
0
I have questions on derivatives cause today I did not go to school and miss Caculus AB and we went over Trifunction Derivatives.

So can anybody show me the rules or send me a link cause I would ask a friend the notes but sometimes my teacher gives bad notes...
 
Physics news on Phys.org
cracker said:
I have questions on derivatives cause today I did not go to school and miss Caculus AB and we went over Trifunction Derivatives.

So can anybody show me the rules or send me a link cause I would ask a friend the notes but sometimes my teacher gives bad notes...

Do you mean the derivative rules for trigonometric functions?
http://www.sosmath.com/calculus/diff/der03/der03.html
 
The quotient Rule is:
y= u/v

y'= [(vu'-uv')/(v^2)]

The product Rule is:
y= uv

y'= (vu'+uv')

the chain Rule is:

y=u^n

y'=(n)(u^n-1)(u')
 
Last edited:
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top