Question

Sa se rezolve ecuatia: subpunctul f)

Answer 1

$\sin^{ - 1}(x) (π - cos^{ - 1}(x)) = \frac{π^2}{9} \\ π sin^{ - 1}(x) - sin^{ - 1}(x) cos^{ - 1}(x) = \frac{π^2}{9} \\ x = \frac{1}{2}$