Identify the equation without applying a rotation of axes.10x2 + 9xy + 4y2 - 2x + 4y + 9 = 0

A. ellipse
B. parabola
C. hyperbola
D. not a conic


Answer: A

Mathematics

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Use integration by parts to establish a reduction formula for the integral.

A.  = cosn-1 x sin x - 
B.  = - cosn-1 x sin x + (n - 1) 
C.  = cosn-1 x sin x + 
D.  = cosn-1 x sin x - (n - 1) 

Mathematics

Find the most general antiderivative.dx

A. -6 cot x + C
B. 6 cot x + C
C. -6 tan x + C
D.  + C

Mathematics

Solve the system by the addition method.

A. {(-1, 2), (1, -2)} B. {(2, 1), (-2, -1)} C. {(2, 1), (2, -1), (-2, 1), (-2, -1)} D. {(1, 2), (-1, 2), (1, -2), (-1, -2)}

Mathematics

A point on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(3, -4) Find sin ?.

A. - 
B.
C. -4
D.

Mathematics