Using a sum or difference identity, write the following as an expression involving functions of x.sin (360° + x)

A. sin x
B. -cos x
C.  cos x +  sin x
D.  cos x -  sin x


Answer: A

Mathematics

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Simplify.

A.
B.  
C.  
D.  

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Solve the problem.Write an equation for the tangent line to the curve   at the point  

A. x + y = 1 B. x - y + 2 = 0 C. y = x - 2 D. y = x + 1

Mathematics

Determine if the function is concave up or concave down in the first quadrant.y = x3/2

A. Concave up B. Concave down

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Solve the matrix equation for X.Let A =  and B = ;4X + A = B

A.
X =  
B.
X =  
C.
X =  
D.
X =  

Mathematics