Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cos 
A. - 
B. - 
C. 
D. 
Answer: D
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Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = x2 + 2x - 3
A. vertex: (-1, 4)
axis of symmetry: x = -1
x-intercepts: 1 and - 3; y-intercept: 3
domain: (-?, ?); range: (-?, 4]
B. vertex: (-1, -4)
axis of symmetry: x = -1
x-intercepts: 1 and - 3; y-intercept: -3
domain: (-?, ?); range: [-4, ?]
C. vertex: (1, -4)
axis of symmetry: x = 1
x-intercepts: -1 and 3; y-intercept: -3
domain: (-?, ?); range: [-4, ?]
D. vertex: (1, 4)
axis of symmetry: x = 1
x-intercepts: -1 and 3; y-intercept: 3
domain: (-?, ?); range: (-?, 4]
Find the derivative.y = 
+ 
A. y ' = - 10 csc x cot x + sec2 x B. y ' = 10 csc x cot x - csc2 x C. y ' = 10 csc x cot x - sec2 x D. y ' = 10 cos x - csc2 x
Factor.3x2 - 3x - 18
A. 3x2 - 3x - 18 B. 3(x + 2)(x - 3) C. (3x + 6)(x - 3) D. 3(x - 2)(x + 3)
Solve the problem.Since cos 
= - 
and 
is in the interval [0, ?], cos-1 - 
=
A. - 
B. 
C. 
D. 27