If A+B+C=5 and AB+BC+CA=10 then prove that A^3+B^3+C^3 -3ABC =-25
CBSE Class 9
CBSE Class 9 Maths
cbse-class-9-maths
,
a3b3c3-3abc
Dhanalakshmi
June 21, 2019, 6:24am
#1
If A+B+C=5 and AB+BC+CA=10 then prove that A
^{3}
+B
^{3}
+C
^{3}
-3ABC =-25
Dhanalakshmi
June 21, 2019, 6:23am
#2