Find the exact value by using a half-angle identity.cos 22.5°
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Provide the requested response.Suppose that a polynomial function of degree 4 with rational coefficients has 
as zeros. Find the other zeros.
A. 3 - 5i , -5 - 
B. 3 - 5i , 5 + 
C. -3 - 5i , 5 + 
D. -3 - 5i , -5 - 
Mathematics
Compute dy/dx for the function.y = 
A. 
B. 
C. - 
D. 
Mathematics
Provide an appropriate response.Why is e used as a base for exponential and logarithmic functions?
What will be an ideal response?
Mathematics
Solve the equation.4n - 2 = 38
A. 10 B. 11 C. 40 D. 36
Mathematics