Show that the following statement is true by transforming the left side into the right side.
?
What will be an ideal response?
We begin by writing everything on the left side in terms of sin ? and cos ?.
?
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Since we have succeeded in transforming the left side into the right side, we have shown that the statement 
is an identity.
Mathematics
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Rewrite the rational expression using the specified denominator D.
, D = (y - 5)(y + 5)(y + 7)
A. 
B. 
C. 
D. 
Mathematics
Match the description with the appropriate rational function.There is a "hole" in its graph at x = 4.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics
Solve the inequality.
? -3
A. 
? x ? 4
B. x ? -4 or x ? 
C. -4 ? x < 0 or 0 < x ? 
D. -4 ? x ? 
Mathematics
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Mathematics