Find the exact value under the given conditions.sin ? = - 
, 
< ? < 2?; tan ? = - 
, 
< ? < ?Find cos (? + ?).
A. 
B. 
C. - 
D. - 
Answer: D
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Establish the identity.cos 3x = cos3 x - 3 sin2 x cos x
What will be an ideal response?
Simplify the expression.(1 + cot ?)(1 - cot ?) - csc2 ?
A. 2 cot2 ? B. 0 C. -2 cot2 ? D. 2
Find the exact value of the expression.tan 
A. 
B. 
C. 
D. 
All developmental specialists acknowledge that neither heredity nor environment alone can account for the full range of human development and change.
Answer the following statement true (T) or false (F)