Use a graphing utility to graph the polar equation.r2 = 9 sin(2?)6
-6
A.
| 6 |
| -6 |
B.
| 6 |
| -6 |
C.
| 6 |
| -6 |
D.
| 6 |
| -6 |
Answer: A
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Find all the second order partial derivatives of the given function.f(x, y) = x2 + y - ex+y
A. 
= 2 - y2ex+y; 
= -x2ex+y; 
= 
= - y2ex+y
B. 
= 1 - ex+y; 
= - ex+y; 
= 
= -ex+y
C. 
= 2 + ex+y; 
= ex+y; 
= 
= ex+y
D. 
= 2 - ex+y; 
= - ex+y; 
= 
= -ex+y
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-2
A. 
B. 
C. 
D. 
Find the matrix of the linear transformation T: V ? W relative to B and C.Suppose B = {b1, b2, b3} is a basis for V and C = {c1, c2} is a basis for W. Let T be defined byT(b1) = 3c1 + c2 T(b2) = 8c1 - 8c2 T(b3) = 3c1 + 2c2
A. 
B. 
C. 
D. 
Determine whether the relation represents a function. If the relation is a function, state its domain and range.
A. function; domain:{18, 36, 54, 72}; range: {3, 6, 9, 12} B. not a function C. function; domain: {3, 6, 9, 12}; range: {18, 36, 54, 72} D. function; domain: {3, 18, 6, 36}; range: {9, 54, 12, 72}