C canada New member Joined Sep 26, 2008 Messages 1 Sep 26, 2008 #1 i have some guestions which i can not answer, if someone gives me a hand, i will be very glad. a) d sec (x²-4) dx b)d³tan x dx³ c)d , x sin x+x² dt x²+1 d) f ‘’ (x) if (x)= sec(4x)
i have some guestions which i can not answer, if someone gives me a hand, i will be very glad. a) d sec (x²-4) dx b)d³tan x dx³ c)d , x sin x+x² dt x²+1 d) f ‘’ (x) if (x)= sec(4x)
R royhaas Full Member Joined Dec 14, 2005 Messages 832 Sep 26, 2008 #2 All use the chain rule in one form or another. For b) it will be a little messy. For c) use dy/dt = (dy/dx)(dx/dt)
All use the chain rule in one form or another. For b) it will be a little messy. For c) use dy/dt = (dy/dx)(dx/dt)
