" 21."sin^(2)(log x^(2))

log(sin x^2)

Evaluate: int sin^(2)(log x)dx

x^(2)log sin x

int_(sqrt(ln2))^(sqrt(ln3))(x sin x^(2))/(sin x^(2)+sin(ln6-x^(2)))dx is

The value of int _(sqrt ( log 2 )) ^(sqrt( log 3 )) (x sin x ^(2))/( sin x ^(2) + sin (log 6 -x ^(2)))dx is

int(ln(1+sin^(2)x))/(cos^(2)x)dx

" 2) "int(2)/(x)sin(log x)dx