For the function
?

?
show the cross section at .
?

A.
B.

?


C.

?


D.

?

?



Answer: C

Mathematics

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Solve the problem by integration.Find the length of the curve y = ln sin x from x =  to x = .

A. ln 
B. ln 
C. ln 
D. ln 

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One period of the given function is defined below. Determine whether the function is even, odd, or neither.f(x) = x cos 2x-2 ? x < 2

A. Odd B. Neither C. Even

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Find the length of the indicated portion of the trajectory.r(t) = (3 + 2t)i + (7 + 3t)j + (5 - 6t)k, -1 ? t ? 0

A. 5 B. 8 C. 9 D. 7

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Find the distance between the pair of points. Give an exact answer.(7, 4) and (-6, -5)

A. 88 units
B. 5 units
C. 88 units
D. 4 units

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