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denis-greek [22]
3 years ago
10

If a + b + c = 1, ab + bc + ca = -1 and abc = -1. find the value of a³+b³+c³​

Mathematics
1 answer:
DIA [1.3K]3 years ago
4 0

Answer:

1

Step-by-step explanation:

→ If we know that 3 numbers need to multiply to make -1, it must be

1, 1 and -1

→ Then we just substitute this into a³ + b³ + c³

1³ + 1³ + (-1)³ = 2 - 1 = 1

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4 years ago
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Answer:

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3 years ago
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Wow...we have lots of numbers to go through.  we know that a 6 sided figure is a hexagon and the interior angles add up to be 720°. so.....

∠A + ∠B + ∠ C + ∠D + ∠E + ∠F = 720°
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