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If f(x)=(1+x)(3+x^2)^(1//2)(9+x^3)^(1//3...

If `f(x)=(1+x)(3+x^2)^(1//2)(9+x^3)^(1//3)` , then `f'(-1)` is equal to 0 (b) `2sqrt(2)` (c) 4 (d) 6

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