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If a^2+b^2+c^2=-2a n df(x)= |1+a^2x(1+b...

If `a^2+b^2+c^2=-2a n df(x)=` `|1+a^2x(1+b^2)x(1+c^2)x(1+a^2)x1+b^2x(1+c^2)x(1+a^2)x(1+b^2)x1+c^2x|` , then `f(x)` is a polynomial of degree `0` b. `1` c. `2` d. `3`

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