Simplify.
? 
A. 2
B.
C.
D. 4
Answer: A
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Find the length of the curve.The curve r = 5 sin3 , 0 ? ? ?
A. (5? - 8)
B. (2? - 3
)
C. (5? - 9
)
D. (3
- ?)
Solve the problem.Find the volume of the solid that is generated by revolving the area bounded by
and
about the x-axis.
A. ? ln (2)
B. ? ln (2)
C. ? ln (11)
D. ? ln (11)
Write the decimal as a percent.0.011
A. 0.0011% B. 11% C. 1.1% D. 0.11%
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.x2 + xy + y2 - 3y - 6 = 0
A. ? = 45°
y'2 = -18x'
parabola
vertex at (0, 0)
focus at (- , 0)
B. ? = 45° -
= 1
hyperbola
center at (0, 0)
transverse axis is the x'-axis
vertices at (±, 0)
C. ? = 45° +
= 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±2)
D. ? = 45° +
= 1
ellipse
center at (,
)
major axis is y'-axis
vertices at (, -
) and (
,
)