Find the indicated term of the sequence.an = (-1)n - 1 
; a4
A. 
, 
B. - 1
C. 4
D. 
Answer: B
Mathematics
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Find the area of the specified region.Inside the lemniscate r2 = a2 sin 2?, a > 0
A. ?a2
B. 0
C. a2
D. 
Mathematics
Solve the problem.Suppose that f and g are continuous and that 
and 
A. 18 B. 26 C. 13 D. -2
Mathematics
Solve.The angle of reflection ? of a ray from air to a medium of index n is given by Snell's Law to be sin ? = 1/n. Find ? if n = 7/6.
A. 31.0° B. 121.0° C. 59.0° D. 1.6°
Mathematics
Find the equation of the circle
that passes through the points 
.
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics