1 / | | / 2\ | \3 - x /*1 dx | / 0
TrigSubstitutionRule(theta=_theta, func=sqrt(3)*sin(_theta), rewritten=3*sqrt(3)*cos(_theta)**3, substep=ConstantTimesRule(constant=3*sqrt(3), other=cos(_theta)**3, substep=RewriteRule(rewritten=(1 - sin(_theta)**2)*cos(_theta), substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=sin(_theta), constant=1, substep=AddRule(substeps=[ConstantRule(constant=1, context=1, symbol=_u), ConstantTimesRule(constant=-1, other=_u**2, substep=PowerRule(base=_u, exp=2, context=_u**2, symbol=_u), context=-_u**2, symbol=_u)], context=1 - _u**2, symbol=_u), context=(1 - sin(_theta)**2)*cos(_theta), symbol=_theta), RewriteRule(rewritten=-sin(_theta)**2*cos(_theta) + cos(_theta), substep=AddRule(substeps=[ConstantTimesRule(constant=-1, other=sin(_theta)**2*cos(_theta), substep=URule(u_var=_u, u_func=sin(_theta), constant=1, substep=PowerRule(base=_u, exp=2, context=_u**2, symbol=_u), context=sin(_theta)**2*cos(_theta), symbol=_theta), context=-sin(_theta)**2*cos(_theta), symbol=_theta), TrigRule(func='cos', arg=_theta, context=cos(_theta), symbol=_theta)], context=-sin(_theta)**2*cos(_theta) + cos(_theta), symbol=_theta), context=(1 - sin(_theta)**2)*cos(_theta), symbol=_theta), RewriteRule(rewritten=-sin(_theta)**2*cos(_theta) + cos(_theta), substep=AddRule(substeps=[ConstantTimesRule(constant=-1, other=sin(_theta)**2*cos(_theta), substep=URule(u_var=_u, u_func=sin(_theta), constant=1, substep=PowerRule(base=_u, exp=2, context=_u**2, symbol=_u), context=sin(_theta)**2*cos(_theta), symbol=_theta), context=-sin(_theta)**2*cos(_theta), symbol=_theta), TrigRule(func='cos', arg=_theta, context=cos(_theta), symbol=_theta)], context=-sin(_theta)**2*cos(_theta) + cos(_theta), symbol=_theta), context=(1 - sin(_theta)**2)*cos(_theta), symbol=_theta)], context=(1 - sin(_theta)**2)*cos(_theta), symbol=_theta), context=cos(_theta)**3, symbol=_theta), context=3*sqrt(3)*cos(_theta)**3, symbol=_theta), restriction=(x < sqrt(3)) & (x > -sqrt(3)), context=3 - x**2*1, symbol=x)
Теперь упростить:
Добавляем постоянную интегрирования:
Ответ:
2.66666666666667
/ | // / ___ 3 ___\ \ | / 2\ || ___ | \/ 3 *x x*\/ 3 | / ___ ___\| | \3 - x /*1 dx = C + |<3*\/ 3 *|- -------- + -------| for And\x > -\/ 3 , x < \/ 3 /| | || \ 27 3 / | / \\ /