Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 75°

A. - 
B. - 
C.
D.

Answer: D

Mathematics

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A.  -  + 972 - 324x2 + 81x4
B.  -  + 486 - 324x2 + 81x4
C.  -  + 486x - 324x2 + 81x4
D.  -  + 486 - 324x3 + 81x4

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Mathematics

Select the smaller of the two given numbers.-128, 17

A. 17 B. -128

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Mathematics

Solve the problem.There are 12 members on a board of directors. If they must form a subcommittee of 5 members, how many different subcommittees are possible?

A. 120 B. 248,832 C. 95,040 D. 792

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Mathematics

Divide and, if possible, simplify. ÷ 

A.  
B.
C. z - 2
D.  

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Mathematics