A^2 +c^2 +17=2(a-2b^2-8b), then the value of (a+b+c)[(a-b)^2+(b-c)^2+(c-a)^2] is
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Answer:
(a+b+c)
2
=a
2
+b
2
+c
2
+2ab+2bc+2ca
⇒(a+b+c)
2
=a
2
+b
2
+c
2
+2(ab+bc+ca)
Given,
ab+bc+ca=10,a
2
+b
2
+c
2
=16
⇒(a+b+c)
2
=16+2(10)
a+b+c=
16+20
=6
Step-by-step explanation:
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