Find the exact value, given that sin A = -4/5 with A in quadrant IV, 
with B in quadrant III, and 
with C in quadrant II.cos 2A
A. 
B. 
C. - 
D. - 
Answer: C
Mathematics
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Use the fact that 
f(x) = 
f 
to find the limit.
n
A. -1 B. e9 C. 1 D. e-9
Mathematics
Solve the problem.Suppose X and Y have joint PDF 
Find the joint PDF g(x, y) of U = X - Y, V =X.
A. g(x, y) = 
B. g(x, y) = 
C. g(x, y) = 
D. g(x, y) = 
Mathematics
Provide an appropriate response.Rationalize the denominator and simplify: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Eliminate the parameter t in the following:
?
?
A. 
, 
, 
B. 
, ,
C. 
, ,
D. 
, ,
E. 
, ,
Mathematics