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If (x+10)^50+(x−10)^50=a0+a1 x+a2x^2+......

If `(x+10)^50+(x−10)^50=a_0+a_1 x+a_2x^2+........a_50x^2+...........+a_50x^50` then the value of a2/a0 is equal to (A) 12.25 (B) 12.75 (C) 11.75 (D) 11.25

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