Use a power-reducing identity to find the exact value of the expression.cos2 (-22.5°)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the integral using tables of integrals. 
A. - 
sin4 5x cos 5x - 
sin2 5x cos 5x - 
sin 10x + 
+ C
B. - 
sin4 5x cos 5x - 
sin2 5x cos 5x - 
cos 5x + C
C. - 
sin4 5x cos 5x - 
sin2 5x cos 5x - 
cos 5x + C
D. - 
cos4 5x sin 5x - 
cos2 5x sin 5x - 
cos 5x + C
Mathematics
Let f be the function defined by 
. Find 
, 
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, 
, and 
What will be an ideal response?
Mathematics
Evaluate.
4
A. - 
B. - 
C. 
D. 
Mathematics
Use radical notation to write the expression. Do not simplify.(4m + n) 3/4
A. 
B. 
C. 
D. 
Mathematics