India Languages, asked by dattaratychudhari, 4 months ago

he said he was not aware of Max and the 6th of 66inches in marathi and he said that the first thing he was saying is the best and most beautiful of the best of all time and a few things we do to king himself in a way that he has been a man made of a God of Max and his life is a very different 56555th and a few years later and a bachelor in his life 6th 5th 5th century I am not the same with a God who has no idea what he said but he was a God of the mene 100 mark ko question rakahe please mark as brainlezt​

Answers

Answered by uttamsalunkhe671
2

Answer:

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Answered by ShreyaloveAbhiroy
0

Answer:

x3 + y3 + z3 – 3xyz = 15 × 12

Or, x3 + y3 + z3 – 3xyz = 180

Consider the equation x + y + z = 15

From algebraic identities, we know that (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca)

So,

(x + y + z)2 = x2 + y2 + z2 + 2(xy + yz + xz)

From the question, x2 + y2 + z2 = 83 and x + y + z = 15

So,

152 = 83 + 2(xy + yz + xz)

=> 225 – 83 = 2(xy + yz + xz)

Or, xy + yz + xz = 142/2 = 71

Using algebraic identity a³ + b³ + c³ – 3abc = (a + b + c)(a² + b² + c² – ab – bc – ca),

x3 + y3 + z3 – 3xyz = (x + y + z)(x² + y² + z² – (xy + yz + xz))

Now,

x + y + z = 15, x² + y² + z² = 83 and xy + yz + xz = 71

So, x3 + y3 + z3 – 3xyz = 15(83 – 71)

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