Solve the problem.What is the domain of the cosine function?
A. all real numbers, except odd multiples of 
(90°)
B. all real numbers
C. all real numbers from -1 to 1, inclusive
D. all real numbers, except integral multiples of ? (180°)
Answer: B
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Provide an appropriate response.Use a compass and straightedge to construct a triangle DEF such that ?DEF ? ?ABC, where triangle ABC is the one shown below.
What will be an ideal response?
Solve the inequality. Write the solution in interval notation and graph the solution set.x - 4 < -7
A. (-3, ?)
B. (-?, -3]
C. (-?, -3)
D. (-?, -11)
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.4 + 8 + 12 + ... + 4n = 2n(n + 1)
What will be an ideal response?
Find the LCM of the given polynomials.3x + 18, x2 + 6x
A. 3x2 + 6 B. 3x2 + 18 C. 3x(x + 6) D. 3x + 6