Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 67.5°

A. - 
B.
C. - 
D.

Answer: A

Mathematics

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Give an appropriate answer.Letf(x) = -4 and g(x) = 2. Find[f(x) + g(x)]2.

A. 20 B. -2 C. 4 D. -6

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Mathematics

Solve the equation. + 9 = 

A.
B.  
C. -  
D. -  

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Mathematics

Simplify.( + 4)( - 4)

A. 22
B. 2
C. 6 - 2
D. -10

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Mathematics

Select the correct graph of the function given by . Explain how the graph of function g differs (if it does) from the graph of each function f. ? ?

A. ?

?

Vertical shift of    units.


B. ?

?

Vertically downward shift of   units


C. ?

?

Horizontal shift of    units to the right


D. ?

?

Horizontal shift of    units


E. ?

?

Horizontal shift of    units to the left


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Mathematics