Evaluate the double integral over the given region. R = {(x, y): 0 ? x ? 3, 0 ? y ? 8}

A. 9 ln 4
B.  ln 4
C. ln 36
D. ln 4 ln 9


Answer: D

Mathematics

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A. 36?2 B. 18?2 C. 6?2 D. 24?2

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A. ray 
B. line 
C. line 
D. line segment 

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Verify that the equation is an identity.sec = -csc x

What will be an ideal response?

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Determine whether the pair of fractions is equivalent.  and  

A. equivalent B. not equivalent

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