Rationalize the denominator. Assume that all variables represent positive values.
A. 
B. 
C. 
D. 
Answer: B
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Use various trigonometric identities to simplify the expression then integrate.
A. - 
cos4 ? + C
B. - 
cos5 ? + C
C. 
cos2 ? + C
D. 
cos3 ? + C
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.xy +16 = 0
A. ? = 45°
+ 
= 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±4
)
B. ? = 36.9°
+ 
= 1
ellipse
center at (0, 0)
major axis is the x'-axis
vertices at (±2, 0)
C. ? = 45°
y'2 = -32x'
parabola
vertex at (0, 0)
focus at (-8, 0)
D. ? = 45°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is y'-axis
vertices at (0, ±4
)
The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find tan ?.
A. - 
B. - 
C. 
D. - 
The measures of two supplementary angles are in the ratio 2:3. Find the measure of the larger angle.
A. 36° B. 54° C. 72° D. 108°