(x+y)3 + ( y + z)3 + ( z+x)3 - 3(x+y)(y+z)(z+x) = 2 ( x3 + y3 + z3 - 3xyz)
CBSE Class 9
CBSE Class 9 Maths
cbse-class-9-maths
Dhanalakshmi
June 20, 2019, 11:56am
#1
(x+y)
^{3}
+ ( y + z)
^{3}
+ ( z+x)
^{3}
- 3(x+y)(y+z)(z+x) = 2 ( x
^{3}
+ y
^{3}
+ z
^{3}
- 3xyz)
Dhanalakshmi
June 20, 2019, 11:56am
#2
image.png
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