Calculus 2 (1 Viewer)

statsguru

New Member
Joined
Feb 18, 2006
Messages
17
Gender
Male
HSC
2006
Can anyone pl halp me wid this q?

Find the domain over which the curve y=x^3+12x^2+45x-30 is increasing

thanks
 

insert-username

Wandering the Lacuna
Joined
Jun 6, 2005
Messages
1,226
Location
NSW
Gender
Male
HSC
2006
Find dy/dx, and then find the values for which dy/dx is positive. I'll get you started:

dy/dx = 3x2+ 24x + 45

Now find where the parabola is above the x-axis. That is the domain over which y is increasing.


I_F
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top