Solve the inequality graphically.
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A. (2, 5)
B. (-?, -5) ? (-2, ?)
C. (-5, -2)
D. ?
Answer: C
Mathematics
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Find all solutions of the equation in the interval [0, 2?).tan2 x = 3
A. 
B. 
C. 
D. 
Mathematics
Which of the following can be inserted to make the statement true?
A. 
B. 
C. 
D. 
E. x
Mathematics
Solve the system of equations. If the system is inconsistent or has dependent equations, say so. x - y + 8z = -107 x + 2y = 212x + y + 8z = -80
A. ?; inconsistent system B. {(x, y, z)|2x + y + 8z = -80}; dependent equations C. {(5, 8, 0)} D. {(5, 8, -13)}
Mathematics
Without solving, determine the character of the solutions of the equation in the complex number system.x2 - 2x + 7 = 0
A. a repeated real solution B. two unequal real solutions C. two complex solutions that are conjugates of each other
Mathematics