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Which of the Following Lines Is/are Parallel to the Tangent y=x3y = - x ^ { 3 }

Question 131

Multiple Choice

Which of the following lines is/are parallel to the tangent line of the graph of y=x3y = - x ^ { 3 } at the point where x=1x = 1 and the slope of the tangent line is 3x2- 3 x ^ { 2 } .
(I) y = -3x + 1
(II) y = 3x + 1
(III) y = -3x - 4
(IV) y = 3x + 1


A) (II) and (III)
B) (I) and (III)
C) (I) and (II)
D) (III) and (IV)
E) none of these

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