Complete the identity.1 - 
= ?
A. tan x
B. 0
C. cos x
D. cot x
Answer: C
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, csc ? < 0Find cos(2?).
A. 
B. 
C. 
D. - 
Provide an appropriate response.How many real solutions are possible for a system of equations whose graphs are an ellipse and a hyperbola (both centered at the origin)?
A. 2 or 4 solutions B. 0, 2, or 4 solutions C. 0, 1, 2, 3, or 4 solutions D. 0, 1, 2, or 3 solutions
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z.5x + 2y + z =-112x - 3y - z=177x - y=12
A. no solution B. (-2, 0, -1) C. (1, -5, 0) D. (0, -6, 1)
The graph of a function f is given. Use the graph to answer the question.Is f(60) positive or negative?
A. positive B. negative