Solve the equation.a -  = -4

A. -7
B. 7
C. 9
D. -9

Answer: A

Mathematics

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Evaluate the integral.

A. tan-1 3 - tan-1 4
B.  tan-1 4 -  tan-1 
C. tan-1 4 - tan-1 
D. tan-1  - tan-1 4

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Mathematics

Evaluate the integral.

A. e7/6
B. ln 
C.  ln 
D.  ln 

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Mathematics

Evaluate the surface integral of G over the surface S.S is the plane x + y + z = 2 above the rectangle 0 ? x? 5 and 0 ? y ? 2; G(x, y, z) = 6z

A. - 90
B. 420
C. 180
D. -180

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Mathematics

Determine the reference angle for the given angle.? = -183°

A. 177° B. 3° C. 87° D. 93°

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Mathematics