if x square + y square + z square - 64 / xy - yz - zx = -2 and x+y = 3z , then the value of z is , [ 4 , 3, 2,  1, 2 one/ 2].           sir please   answer it in simple way.

Asked by Rony Joseph | 3rd Apr, 2014, 06:50: PM

Expert Answer:

Answered by  | 4th Apr, 2014, 10:35: AM

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