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Assertion: one root of equation (a-d)^2x...

Assertion: one root of equation `(a-d)^2x^2-[(b-c)^2}(c-a)^2x-(d-b)^2=0` is necessarily 1. Reason: `(a-d)^2=(b-c)^2 +(c-a)^2 +(d-b)^2` (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not te correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

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