Verify that the equation is an identity.cos
= -sin x
What will be an ideal response?
cos 
= cos 
cos x + sin 
sin x = 0 ? cos x - 1 ? sin x = - sin x
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Find the absolute maxima and minima of the function on the given domain.
on the rectangular region 
A. Absolute maximum: 
at 
absolute minimum: 
at 
B. Absolute maximum: 
at 
absolute minimum: 
at 
C. Absolute maximum: 
at 
absolute minimum: 
at 
D. Absolute maximum: 
at 
absolute minimum: 
at 
Solve the system by graphing. Check the coordinates of the intersection point in both equations.
A. {(5, 2)} B. {(-5, 2)} C. {(x, y) ? 2x + y = -8} D. ?
Convert the improper fraction to a mixed number.- 
A. -2
B. -3
C. -1
D. -2
Using the addition/subtraction method, find the value of x and y to satisfy the following equations: 2x + 3y = 3; 3x + 6y = 10
a. 1 1 x = -4Ä y = 3Ä 3 3 b. 1 2 x = 4Ä y = 2Ä 2 3 c. 2 x = -4 y = 3Ä 3 d. x = -4 y = 3 e. 2 x = 4 y = -3Ä 3