Establish the identity.cot(2?)= 
What will be an ideal response?
cot(2?) = 
= 
= 
= 
Mathematics
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Factor completely, if possible.20y2 + 23y + 6
A. (4y - 3)(5y - 2) B. Prime C. (20y + 3)(y + 2) D. (4y + 3)(5y + 2)
Mathematics
Provide an appropriate response.If a < 0, which of the following correctly describes - 
?
A. Negative B. Positive C. Zero D. Not a real number
Mathematics
Solve the problem.If f(x) = 
, f(-1) = 0, and f(-7) is undefined, what are the values of A and B?
A. A = -1, B = -7 B. A = 1, B = 7 C. A = 7, B = 1 D. A = -7, B = -1
Mathematics
Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 67.5°
A. 
B. - 
C. 
D. - 
Mathematics