Use half-angle identities to find the exact value of the expression.cos 165°
A. - 
B. 
C. - 
D. 
Answer: A
Mathematics
You might also like to view...
Write sigma notation. 
+ 
+ 
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Given 
f(x) = Ll , 
f(x) = Lr , and Ll ? Lr, which of the following statements is true?I. 
f(x) = LlII. 
f(x) = LrIII. 
f(x) does not exist.
A. I B. III C. II D. None
Mathematics
Factor when possible.4x2 - 28x + 48
A. 4(x - 4)(x - 3) B. (x - 4)(4x - 12) C. 4(x - 12)(x + 1) D. Prime
Mathematics
Factor the expression completely.21x2 - 91x - 70
A. 7(3x - 2)(x + 5) B. (3x + 2)(7x - 35) C. (21x + 14)(x - 5) D. 7(3x + 2)(x - 5)
Mathematics