Use the appropriate sum or difference identity to write the given expression as a function of x alone.sin (270° - x)
A. - sin x
B. sin x
C. - cos x
D. cos x
Answer: C
Mathematics
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Solve the problem.The hyperbola 
- 
= 1 is shifted horizontally and vertically to obtain the hyperbola
- 
= 1Find the asymptotes of the new hyperbola.
A. y - 3 = ± 
(x - 3)
B. y = ± 
x
C. y - 3 = ± 
(x - 3)
D. y = ± 
x
Mathematics
Show that the function is a solution of the wave equation.w(x, t) = ln 6cxt
A. No B. Yes
Mathematics
Solve the equation.4
= 
A. 
B. 
C. 
D. 
Mathematics
Use the graph of y = g(x) to answer the question.
Find f(-4).
A. 2 B. 1 C. -4 D. 0
Mathematics