Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
+ 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Identify equilibrium values and determine which are stable and which are unstable.y' = (y - 1)(y - 3)(y - 4)
A. y = 4 is a stable equilibrium value and y = 3 and y = 1 are unstable equilibria. B. y = 3 is a stable equilibrium value and y = 1 and y = 4 are unstable equilibria. C. y = 1 is a stable equilibrium value and y = 3 and y = 4 are unstable equilibria. D. y = 5, y = 1 and y = 4 are unstable equilibria.
Mathematics
Find all possible functions with the given derivative.y' = csc2 4?
A. 
csc 4? + C
B. - 
cot 4? + C
C. - 
csc3 4? + C
D. -4 cot 4? + C
Mathematics
Find a QR factorization of the matrix A.A = 
A.
Q = 
, R = 
B.
Q = 
, R = 
C.
Q = 
, R = 
D.
Q = 
, R = 
Mathematics
Use the vertical line test to determine whether y is a function of x.
A. Yes B. No
Mathematics