Differentiate the following, please

  • Thread starter Thread starter 1875
  • Start date Start date
  • Tags Tags
    Differentiate
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
1 reply · 2K views
1875
Messages
10
Reaction score
0
If you would be so kind, I missed today's lecture and do not even know where to begin.

i) x = 3t^3 + 6√t + 3/t^2

ii) y = 3sin 2x + 5cos(4x)
 
Physics news on Phys.org
1875 said:
If you would be so kind, I missed today's lecture and do not even know where to begin.

i) x = 3t^3 + 6√t + 3/t^2

ii) y = 3sin 2x + 5cos(4x)

The derivative of a constant times a function
is equal to the constant times the derivative of the function."
d
dx 5x² = 5· 2x = 10x.

d
dx 8x = 8· 1 = 8.