Write the expression in terms of sines and/or cosines, and then simplify.(1 - csc ?)( 1 + csc ?)
A. tan2 ?
B. cos2 ?
C. -csc2 ?
D. -cot2 ?
Answer: D
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Find the vector projv u.v = 3j, u = 4i + 3k
A. 
i + 
j + 
k
B. 
j
C. 
i + 
j
D. 0
Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 
- 
+ 2
B. f(x) = 
- 
+ 
C. f(x) = 
- 
+ 2
D. f(x) = 
- 
+ 2
Find the volume of the cylinder satisfying the given condition. Approximate values to the nearest tenth.radius = 6 cm, height = 8 cm
A. 263.8 cm3 B. 904.3 cm3 C. 527.6 cm3 D. 376.8 cm3
The circle or ellipse shown in the calculator-generated graph was created using function mode with a square viewing window. What are the two functions y1 and y2 that were used to obtain the graph whose equation is given?
+ 
= 1
A. 
, 
B. 
, 
C. 
, 
D. 
, 