Find the exact value of the composition.tan-1 
A. - 
B. 
C. - 
D. 
Answer: C
Mathematics
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Solve the proportion.
= 
A. 9 B. 1 C. 2 D. 4
Mathematics
Find u ? v, where ? is the angle between the vectors u and v. Round the answer to the nearest tenth.
= 5, 
= 5, ? = 
A. 12.5 B. 50 C. 21.7 D. 28.9
Mathematics
Using a sum or difference identity, write the following as an expression involving functions of ?.sin 
A. sin ?
B. 
cos ? + 
sin ?
C. -cos ?
D. 
cos ? - 
sin ?
Mathematics
Divide.
A. 159 B. 169 C. 16.9 D. 15.9
Mathematics