Step-by-step explanation:
Answer:
csc 720
)
Step-by-step explanation:
Rewrite
csc
(
720
)
in terms of sines and cosines.
1
sin
(
720
)
Remove full rotations of
360
° until the angle is between
0
° and
360
°.
1
sin
(
0
)
The exact value of
sin
(
0
)
is
0
.
1
0
The expression contains a division by
0
The expression is undefined.
Undefined
Functions cannot have the same X value (the first number), but they can have the same Y value (the second number).
<span>A. {(1,2),(2,3),(3,4),(2,1),(1,0)}
B. {(2,−8),(6,4),(−3,9),(2,0),(−5,3)}
C. {(1,−3),(1,−1),(1,1),(1,3),(1,5)}
D. {(−2,5),(7,5),(−4,0),(3,1),(0,−6)}
Choice A. has two repeating X values [(1,2) and (1,0), (2,3) and (2,1)]
Choice B. has one repeating X value [(2, -8) and (2,0)]
Choice C. all has a repeating X value (1)
Choice D doesn't have any repeating X values.
In short, your answer would be choice D [</span><span>{(−2,5),(7,5),(−4,0),(3,1),(0,−6)}] because it does not have any repeating X values.</span>
-1 or option c is correct. Use the given functions to set up and simplify f(−2).
