C

1003107913

Level: 
C
Which method is the most effective to solve the indefinite integral sin(lnx)dx in the range (0;)?
By parts integration, when we let u(x)=sin(lnx), where u(x) is the integrated function, and we let v(x)=1, where v(x) is the differentiated function.
By substitution, a=sinx.
By parts integration, when we let u(x)=lnx, where u(x) is the integrated function, and we let v(x)=sinx, where v(x) is the differentiated function.
By substitution, t=sin(lnx).

1003107912

Level: 
C
Which method is the most effective to solve the indefinite integral dxxlnx in the range (1;)?
By substitution, a=lnx.
By parts integration, when we let u(x)=1x, where u(x) is the integrated function, and we let v(x)=lnx, where v(x) is the differentiated function.
By substitution, a=1x.
By factorization into 1xdx1lnxdx.

1003107905

Level: 
C
Solve the indefinite integral (abecbx2+5bsinc)dc of a real-valued function, where a, b, x are real numbers.
abecbcx2+c5b+cosc+k, kR
eccosc+k, kR
abecbcx2+c5bcosc+k, kR
abecbcx2+5bcsinc+k, kR