Simplify the expression. Assume all variables represent nonzero real numbers.- 0

A. 1
B. -1
C.
D.


Answer: B

Mathematics

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Use l'Hopital's Rule to evaluate the limit.x sin 

A. 0
B.
C. 1
D. 20

Mathematics

Solve the right triangle with the given sides and angles.a = 3.4, b = 2.1

A. ? = 58.3°, ? = 31.7°, c = 4.0 B. ? = 53.8°, ? = 36.2°, c = 4.0 C. ? = 38.1°, ? = 51.9°, c = 5.5 D. ? = 31.7°, ? = 58.3°, c = 4.0

Mathematics

Express the product as a sum or difference.cos  cos 

A. (cos 4x - sin 3x)
B. (cos 8x - sin6x)
C. (cos 3x + cos 4x)
D.  cos2 7x

Mathematics

Evaluate.-33

A. 9 B. -9 C. -27 D. 27

Mathematics