Establish the identity.cos(x - y) - cos(x + y) = 2 sin x sin y
What will be an ideal response?
cos (x - y) - cos (x + y) = cos x cos y + sin x sin y - ( cos x cos y - sin x sin y) = 2 sin x sin y.
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Provide an appropriate response.The relationship between the temperature F on the Fahrenheit scale and the corresponding temperature C on the Celsius scale is given by 
= 
. Convert 77°F into a Celsius temperature.
Fill in the blank(s) with the appropriate word(s).
Find the vertical asymptotes, if any, of the graph of the rational function.h(x) = 
A. x = -6 B. x = 6 C. x = 6, x = -6 D. no vertical asymptote
Select from the list of numbers all that belong to the specified set.Irrational numbers16, 
, -12, 0, 
, 
, 
, 0.35
A. 
, 
, 0.35
B. 
, 
C. 
, 
D. 
Simplify. If the answer is not a real number, state so. Assume all variables represent non-negative real numbers.
A. 8x B. x9 C. x8 D. x4