Find the area of the surface generated by revolving the curves about the indicated axis.x = t + , y =  + t, -  ? t ? ; y-axis

A. ?
B. 532?
C. ?
D. 1330?

Answer: C

Mathematics

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Use reduction formulas to evaluate the integral.

A.  sin 4x -  sin3 4x + C
B.  sin 4x +  sin3 4x + C
C.  sin 4x -  cos3 4x + C
D. 5 sin 4x -  sin3 4x + C

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Write the set in interval notation and graph the interval.{x|-5 < x ? -2}

A. (-5, -2)

B. [-5, -2]

C. (-5, -2]

D. [-5, -2)

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Find the exact value of the expression.cos  cos  + sin  sin 

A.
B.
C. 1
D.

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Multiply. ? 

A.
B.
C.
D.

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Mathematics