Find the limit.Find 
(csc ? - cot ?)
A. ?
B. 1
C. 0
D. -?
Answer: C
Mathematics
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Determine whether the given linear equations are parallel, perpendicular, or neither.x- 
y = 43x + 
y = -6
A. parallel B. perpendicular C. neither
Mathematics
Simplify the expression without a calculator.64-3/2
A. 
B. - 
C. -512
D. 512
Mathematics
Find the domain of the given function.f
= -4
A. [0,?) B. [-4, 4] C. All real numbers D. (-?,-4) ? (-4,?)
Mathematics
Determine the amplitude or period as requested.Amplitude of y = - 
sin x
A. - 
B. 
C. 
D. 4
Mathematics