Math 125       Test 3           5 points each          March 16, 2005

 


Differentiate

 

1.  y = sin ¹

 

2.  y = x

 

3. 

 

4.   

                     __

5.  y = cot6 ù

 

6.  y = ¹ tan20 4x

 

7.  y = csc 5x cos2 3x

 

8. 

          

 

9. Find y'(x) = dy/dx for

 

x2y3 + x = y2

 

10. Find the equation of the line tangent to

 

f(x) = x3 - 3x2 + 4 at the point (1,2)

 

Find all max and min and sketch the function.

11.  g(x) = x2 - 6x  for -1 ² x ² 4

 

12. y = 4x3 + 9x2 - 12x,   -2 ² x < 1

 

13.  Draw me a function whose derivitives are :

a.  increasing

b.  decreasing

 

 

 

Sketch Graph without calculus:

 

14. y = (x  + 2)2(x - 3)3(x - 1)2

 

15. 

Find max's, min's, inflection points and sketch accurate graph of the functions, tell whether each max or min is relative or absolute.

 

16. y =  - x3 + 6x2 -24

 

17. 

 

 Write the equation for:

18.

            

19.