Find the reciprocal.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Decide whether the statement is true or false.
is irrational.
A. True B. False
Mathematics
Find cos(A + B).cos A = 
and 
, where 
and 
.
A. - 
B. 
C. - 
D. 
Mathematics
Find all numbers for which the rational expression is not defined.
A. None B. d = -2 C. d = 2 D. d = 2, 6
Mathematics
Express the following in interval notation.
A. (-3, 1) B. [-3, 1] C. (-3, 1] D. [-3, 1)
Mathematics