Find the standard form of the equation for the ellipse satisfying the given conditions. Foci at (0, ±2); vertex (0, -5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Factor.8a3 - 125b3
A. (2a - 5b)(4a2 + 10ab + 25b2) B. (2a + 5b2)(4a2 - 10ab + 25b2) C. (2a - 5b)(4a2 + 25b2) D. (8a - 5b)(a2 + 10ab + 25b2)
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Solve the system of equations by Gauss-Jordan elimination.
A. {(-3, 3, 5)} B. {(-3, 5, 3)} C. {(3, -3, 5)} D. ?
Mathematics
Solve the problem.Given cot ? = 4 , use trigonometric identities to find the exact value of csc2 ?.
A. 
B. 
C. 17
D. 
Mathematics
Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Mathematics