Use reduction formulas to evaluate the integral.

A. -  sin4 5x cos 5x -  sin2 5x cos 5x -  sin 10x +  + C
B. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C
C. -  sin4 5x cos 5x -  sin2 5x cos 5x -  cos 5x + C
D. -  cos4 5x sin 5x -  cos2 5x sin 5x -  cos 5x + C

Answer: C

Mathematics

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Convert. Round to the nearest tenth unless otherwise indicated.The temperature in Duluth was -13°F. What is this temperature in degrees Celsius?

A. 8.6°C B. -7.2°C C. -25.0°C D. -23.4°C

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Evaluate the line integral along the curve C.ds , C is the path from (0, 0, 0) to (1, 1, 1) given by:C1: r(t) = ti, 0 ? t ? 1C2:  r(t) = i + tj, 0 ? t ? 1C3:  r(t) = i + j + tk, 0 ? t ? 1

A. 7 + e10  B. 15 + 10e10 + ln 2 C. 5 + e10  D. 25 + 11e10 + ln 2

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Mathematics

Perform the computation.-378 + 769

A. -1147 B. 1147 C. -391 D. 391

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Mathematics

Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - ,   < ? < 2?Find sin .

A. - 
B.
C.
D. - 

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Mathematics