Cambios de plano

Resolución
Solución

α2

α2

α2

α2

α2

α2

α1

α1

α1

α1

α1

α1

α'1

α'1

α'1

α'1

α'1

α'1

α'1

α'2

α'2

α'2

α'2

α'2

α'2 = α''2

α'1-α''1