The nth term of a sequence is given. Find the first 4 terms.an = (-1)n-1(8n - 4)
A. 4, 12, 20, 28
B. 4, -12, 20, -28
C. 4, -20, 20, -28
D. -4, 12, -20, -28
Answer: B
Mathematics
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Solve the equation by making an appropriate substitution.x4 - 23x2 - 50 = 0
A. {-5, 5, -i
, i
}
B. {5, i
}
C. {-25, 2}
D. {- 
, 
, -5i, 5i}
Mathematics
Find all solutions of the equation in the interval [0, 2?).cos2 x - 1 = 0
A. {0}
B. {0, ?}
C. 
D. 
Mathematics
Find the area of the polygon.
A. 8
m2
B. 3
m2
C. 7
m2
D. 17 m2
Mathematics
For the given functions f and g, find the requested composite function.f(x) = 
, g(x) = 8x + 5;
Find the function g ? f.
A. 8x + 35
B. x - 
C. x
D. x + 10
Mathematics