1.

Find ( int ,3 ,cos x+ frac{1}{x} dx ).

A. (3 ,sin u2061x- frac{1}{x}+C )
B. (2 ,sin u2061x+ frac{1}{x^3}+C )
C. (3 ,sin u20613x+ frac{1}{x}+C )
D. (sin u2061x- frac{1}{x^2}+C )
Answer» B. (2 ,sin u2061x+ frac{1}{x^3}+C )


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