Use even and odd properties of the trigonometric functions to find the exact value of the expression.sin 
A. 
B. - 
C. - 
D. 
Answer: B
Mathematics
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Find the series' radius of convergence.
A. 2 B. 1 C. 0 D. ?, for all x
Mathematics
Decide whether or not the ordered pair is a solution of the system.(8, 4)y = 
x2x + y = 20
A. Yes B. No
Mathematics
Use identities to fill in the blank with the appropriate trigonometric function name.cot 65° = 
A. sec B. csc C. cot D. tan
Mathematics
Determine if the equation is an identity.sin(x + y) - sin(x - y) = -2 cos x sin y
A. Not an identity B. Identity
Mathematics