Evaluate x3 + y3 + z3-3xyz when x =-2 ,y= -1 and z= 3.
Anonymous:
As x+y+z = 0 , x³+y³+z³ = 3xyz
3(-2)(-1)(3) = 18
So , 3xyz-3xyz = 0
yeah
exactly that was what i was Telling them
Answers
Answered by
12
-8+(-1)+27-3*-2*-1*3= -9+27-18= 27-27= 0
this condition hasn't given there
See again, x=-2, y=-1 and z=3
x+y+z=0
Yep , @Light1729
condition needed to be specifically mentioned in the question... we cant asume conditions bro
its not an assumption
its what is given, we just have to observe
stop your typing
It's not worth explaining... @Light1729
okay! @TheRevenant
Answered by
30
I hope you will be satisfied
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