Express the sum or difference as a product of sines and/or cosines.sin (6?) - sin (4?)
A. -2 sin (5?) cos ?
B. -2 sin ? cos (5?)
C. 2 sin (5?) cos ?
D. 2 sin ? cos (5?)
Answer: D
Mathematics
You might also like to view...
Use properties of exponents to simplify the expression. Express answers in exponential form with positive exponents only. Assume that any variables in denominators are not equal to zero.(x5 ? x2)-3
A. 
B. 
C. 
D. x21
Mathematics
Find the weighted mean of the numbers in the table. Round to the nearest tenth.Find the mean salary for the employees. Round to the nearest thousand dollars. 
A. $41,000 B. $40,000 C. $45,000 D. $39,000
Mathematics
Use factoring to solve the equation.r2 + 4r + 4 = 15
A. 13
B. 
, 
C. -2 + 
, -2 - 
D. 2 + 
, 2 - 
Mathematics
The given function is one-to-one. Find f-1(x).f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics