a ( b-c ) + b ( c-a )+c (a-b )
Answers
Answered by
0
a(b-c) +b(c-a)+c(a-b)
then
==➡➡➡
⬇⬇⬇⬇
ab- Ac + BC - ba + ca +cb
then
ab-ac +BC - ab + Ac + BC
⬇⬇
== 0
then
==➡➡➡
⬇⬇⬇⬇
ab- Ac + BC - ba + ca +cb
then
ab-ac +BC - ab + Ac + BC
⬇⬇
== 0
Answered by
1
a(b-c) + b(c-a) + c(a-b)
= ab - ac + bc - ba + ca - cb
= ab - ac + bc - ab + ac -bc
=0
= ab - ac + bc - ba + ca - cb
= ab - ac + bc - ab + ac -bc
=0
alisha1999:
Tnx
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