Use the partial sum formula to find the partial sum of the given geometric sequence.Find the sum of the first five terms of the geometric sequence 
, 
, 
, . . .
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find all solutions in the interval [0, 2?).sec2x - 2 = tan2x
A. x = 
B. x = 
C. No solution
D. x = 
Mathematics
Evaluate the expression, given x = -2, y = 3, and a = -4.
A. -56 B. -14 C. -1 D. 56
Mathematics
Evaluate the expression for the given value or values.(x + 4y)2 when x = 3, y = 3
A. 49 B. 15 C. 225 D. 30
Mathematics
State the domain of the rational expression.
A. {x|x ? 2}
B. {x|x ? 
, 2}
C. {x|x ? -2}
D. All real numbers
Mathematics