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The function `x^(5)-5x^(4)+ 5x^(3) -10` has a maxima, when `x=`A. 3B. 2C. 1D. 0 |
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Answer» Correct Answer - C `(dy)/(dx)=(d)/(dx)(x_(5)-5x_(4)+5x_(3)-10)` `= 5x_(4)-20x_(3)+15x_(2)=0`, `(d^(2)y)/(dx^(2)) lt 0` at `x =1`. |
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