Use the sum/difference identities to simplify the expression. Do not use a calculator.cos 
cos 
+ sin 
sin 
A. 
B. 
C. - 1
D. 
Answer: D
Mathematics
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Find the area or volume.Find the area under the curve y = 
bounded on the left by x = 24.
A. 
B. 
C. 10
D. 
Mathematics
Solve the equation by first clearing the fractions.
t - 
t = t - 
A. 
B. {-4}
C. {0}
D. 
Mathematics
Solve the proportion.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Find the domain of the composite function (f ? g)(x). Write the domain in interval notation.f(x) = 5x + 30, g(x) = x + 1
A. (-?, 7) ? (7, ?) B. (-?, -6) ? (-6, -1) (-1, ?) C. (-?, ?) D. (-?, -7) ? (-7, ?)
Mathematics