Solve, finding all solutions in [0, 2?).2 cos x tan x + 
tan x = 0
A. 0, ?, 
, 
B. 0, 
, 
, 
C. No solution
D. 0, 
, 
, 
Answer: A
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Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.P(x) = 7x20 - 9x14 - 4x11 + 2x2 - 3x
A. 1 or 3 positive; 0 or 2 negative B. 3 positive; 2 negative C. 1 or 3 positive; 1 or 3 negative D. 0 or 2 positive; 0 or 2 negative
Find an equation of a line satisfying the following conditions.Horizontal, passing through (2.3, 1.2)
A. y = 2.3 B. x = 2.3 C. x = 1.2 D. y = 1.2
Provide an appropriate response.Solve the system of equations using the addition method: 5x + 2y = 11 x - 2y = -5
A. x = 1, y = 3
B. x = 
, y = 1
C. x = -1, y = 8
D. x = 
, y = 
Find the exact value of the expression or state that it does not exist.tan-1 
A. 
B. - 
C. - 
D. 