Solve the equation on the interval [0, 2?).cos 2x = 
A. 
, 
, 
, 
B. 
, 
, 
, 
C. 0, 
, ?, 
D. no solution
Answer: A
Mathematics
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A. 15 - 7i B. 8 - 7i C. 8 + 6i D. 14i
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Find the slope and the y-intercept of the line.4x - 5y = 5
A. Slope - 
; y-intercept (0, 1)
B. Slope -1; y-intercept (0, -1)
C. Slope 1; y-intercept (0, 1)
D. Slope 
; y-intercept (0, -1)
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Use a graphing calculator to solve the system. If 
is the solution to the system, give the value of 
.
?
?
A. 10
B. 9
C. 13
D. 12
E. 23
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Solve the equation for exact solutions.4 cos-1 x = ?
A. 
B. 
C. 
D. 
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