Find the exact value in degrees.sin-1 

A. 60°
B. 45°
C. 120°
D. 135°

Answer: A

Mathematics

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A. -125
B. -89
C. - 
D. -31

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Expand, where i2 = -1.(1 + i)8

A. -64
B.
C. 16
D.

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First, write the value(s) that make the denominator(s) zero. Then solve the equation. + 4 =  + 

A. x ? 0; 
B. x ? 0; 
C. No restrictions; 
D. x ? 0, 2, 5; 

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Solve the system of equations using the addition method.4x - 2y = 4-6y = 12 - 12x

A. (0, 0) B. (4, -2) C. infinite number of solutions D. no solution

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