Determine the values of the given functions as indicated rounded to four decimal places. Find cos 75° by using 75° = 30° + 45°.
A. -0.2588
B. 0.7071
C. 0.9659
D. 0.2588
Answer: D
Mathematics
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Use the vectors u, v, w, and z head to tail as needed to sketch the indicated vector. 
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A. 
B. 
C. 
D. 
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Perform the following operation.
?
Fill in the blank(s) with the appropriate word(s).
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Divide and simplify.- 
÷ 
A. 
B. - 
C. 
D. 
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Find the vertices and foci of the given ellipse.9x2 + 4y2 = 36
A. Vertices: (0, 9) and (4, 0);
Foci: (0, 3) and (2, 0)
B. Vertices: (0, 9) and (0, -9);
Foci: (0, 3) and (0, -3)
C. Vertices: (0, 3) and (0, -3);
Foci: (0, 
) and (0, -
)
D. Vertices: (3, 0), (-3, 0);
Foci: (
, 0) and (-
, 0)
Mathematics