Classes›Class 9›Maths›NCERT›Exploring Algebraic Identities›Exercise 4.3›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