Verify the identity.(tan x + 1)2 + (tan x - 1)2 = 2 sec2 x
What will be an ideal response?
(tan x + 1)2 + (tan x - 1)2 = tan2x + 2 tan x + 1 + tan2x - 2 tan x + 1 = 2(tan2x + 1) = 2 sec2x
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The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. 
A. Maximum at 6 for x3 = 2, s2 = 6 B. Maximum at 7 for x2 = 2, s1 = 2 C. Maximum at 21 for x2 = 2, x3 = 6 D. Maximum at 18 for x3 = 6, s2 = 2
Determine if the following is a linear equation in one variable. If not, state why.4x + 6 = 2x + 16
A. It is a linear equation in one variable. B. It is not a linear equation in one variable because 4x has an exponent other than 1. C. It is not a linear equation in one variable because it is not an equation. D. It is not a linear equation in one variable because it has more than one variable.
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.2x2 = -8x - 1
A. 
B. 
C. 
D. 
State the quadrant in which ? lies if 
< 0 and 
> 0?.
A. Quadrant II B. Quadrant IV C. Quadrant I D. Quadrant III