Prove that the equation is an identity.
= cot(15k) tan (2k)
What will be an ideal response?
 =  | Using the sum-to-product identities |
? 
= cot(15k) tan (2k)
Mathematics
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Perform long division.
A. x4 + 11x3 + 27x2 -14 B. x3 - 5x2 + 3x + 4 C. x3 + 5x2 - 3x + 4 D. x3 + 11x2 + 27x - 18
Mathematics
Match the system of equations with one of the graphs.x2 + y2 + 13y = 0x2 + y2 = 12x
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation or operations. Simplify, if possible.
- 
+ 
A. -1
B. 1
C. 
D. 
Mathematics
Simplify.6 + (-20) - (-3)
A. -17 B. 23 C. 11 D. -11
Mathematics