Question

Докажите тождество (x-a)(y-b)(z-c)=-(a-x)(b-y)(c-z) попросил у объясните плиииз

Answer 1

Ответ:

Объяснение:

$(x-a)(y-b)(z-c)=-(a-x)(b-y)(c-z)\\\\(-1(a-x))*(-1(b-y))*(-1(c-z))=-(a-x)(b-y)(c-z)\\\\(-1)*(-1)*(-1)*(a-x)(b-y)(c-z)=-(a-x)(b-y)(c-z)\\\\(-1)*(a-x)(b-y)(c-z)=-(a-x)(b-y)(c-z)\\\\-(a-x)(b-y)(c-z)=-(a-x)(b-y)(c-z)$