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Class 9 - Mathematics
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Class 9
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Maths
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NCERT
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Exploring Algebraic Identities
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Exercise 4.3
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Q 4
QUESTION 4
Easy
Is this an identity?
\((a + b − c)^2 + (a − b + c)^2 + (a − b − c)^2 = 2a^2 + 2b^2 + 2c^2\)
SOLUTION