Use the fundamental identities to find the value of the trigonometric function.Find csc ?, given that sin ? = - 
and ? is in quadrant IV.
A. 
B. - 
C. 
D. - 
Answer: D
Mathematics
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Perform the indicated operation. Write the result in the form a + bi.
? 
A. 
B. -i
C. -
D. i
Mathematics
Fill in the blank with one of the words or phrases listed below.
An angle that measures 180° is called a(n)
angle.
A. acute B. straight C. vertical D. obtuse
Mathematics
Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = cos-1
A. 1
B. ?
C. 
D. No limit
Mathematics
Write the polynomial dividend.
?110?21?-3-2117?0
A. x2 + 10x + 21 B. x + 3 C. -x2 - 10x - 21 D. x + 7
Mathematics