Express the sum or difference as a product of sines and/or cosines.cos (10?) - cos (4?)
A. -2 cos (7?) sin (3?)
B. 2 cos (3?)
C. 2 cos (7?) cos (3?)
D. -2 sin (7?) sin (3?)
Answer: D
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + j; v = 3i + 9j + 6k; w = 2i + 5j + 8k
A. 27 B. 99 C. 51 D. 33
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Graph the function.y = -3 csc
A.
B.
C.
D.
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Solve for base in the problem. Round to the nearest hundredth, if necessary.60% of pounds is 90 pounds.
A. 54 B. 15 C. 1,500 D. 150
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Provide an appropriate response.Plot the point and find other polar coordinates (r, ?) of the point for which: (a) r > 0, -2? ? ? < 0 (b) r < 0, 0 ? ? < 2? (c) r > 0, 2? ? ? < 4?
A. (a) , (b)
, (c)
B. (a) , (b)
, (c)
C. (a) , (b)
, (c)
D. (a) , (b)
, (c)
Mathematics