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Powers with Positive and Negative Exponents

If a2 + b2 + ...

Question

If $a^{2} + b^{2} + c^{2} = 2 (b + c - 1)$ , then find the value of $a + b + c$ .

A

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B

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C

2

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D

3

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Solution

The correct option is C $2$

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Similar questions

a^{2} + b^{2} + c^{2} = 2 (a + 2 b - 2 c) - 9

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