math
posted by hanny on .
can some one please help me with the following questions as i don't understand them please
(a) write down the derivative of each of the functions
f(x)=E7x and g(x)=cos(2x)
using the product rule differentiate the function
k(x)=E7xcos(2x)
(b)write down the derivative of each of the functions
f(t)=t51 and g(t)=1n(4t) (t>0)
using the quotient rule differentiate the function
k(t)=t51 (t>1)
 
1n(4t) 4
(c) write down the derivative of each of the functions
f(x)=x3/2 (x>0) and g(u)=sin(1u)

3
useing the composite rule differentiate the function
k(x)=sin(1x3/2) (x>0)

3