问题
解答题
计算:
|
答案
设
=a,151 351
=b,517 751
=c,则:319 537
×(151 315
-517 751
)+319 537
×(517 751
-319 537
)+151 315
×(319 537
-151 315
)517 751
=a(b-c)+b(c-a)+c(a-b)
=ab-ac+bc-ba+ca-cb
=0.
计算:
|
设
=a,151 351
=b,517 751
=c,则:319 537
×(151 315
-517 751
)+319 537
×(517 751
-319 537
)+151 315
×(319 537
-151 315
)517 751
=a(b-c)+b(c-a)+c(a-b)
=ab-ac+bc-ba+ca-cb
=0.