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Nina [5.8K]
2 years ago
6

Please help me with this thanks

Mathematics
1 answer:
slava [35]2 years ago
5 0

Answer:

I believe it is 60 degrees

Step-by-step explanation:

90 degrees plus 30 is 120 then plus x will be 180 so 180 - 120 is 60

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<em>Now we know that</em>

<em>when x+y+z = 0,</em>

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<em>that means</em>

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<em>Lets solve for LHS</em>

<em>LHS = a²/bc + b²/ac + c²/ab</em>

<em>we can write it as LHS = a³/abc + b³/abc + c</em><em>³</em><em>/abc</em>

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<em>Comparing one and two we can say that</em>

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<em>Hence proved,</em>

<em>a²/bc + b²/ac + c²/ab = 3</em>

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Answer:

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