Use the given information to find the exact value of the trigonometric function.cos ? = - 
, ? lies in quadrant III
Find cos 
.
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Write a set representing the statement.The integers between 7 and 13
A. {7, 8, 9, 10, 11, 12, 13} B. {7, 8, 9, 10, 11, 12} C. {7, 13} D. {8, 9, 10, 11, 12}
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Use DeMoivre's Theorem to find the indicated power of the complex number. Write the answer in rectangular form.(1 + i)20
A. -1024 B. 1024 C. 1024i D. -1024i
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Solve the equation.2y4 = 72y2
A. -6, 0, 6 B. -6, 0 C. -6, 6 D. 0, 6
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Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.
A. 
; - 
B. 
; - 
C. 
; - 
D. 
; - 
Mathematics