NDA Math Application of Derivatives

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For the next two (2) items that follow:
Consider the function
f(x)=0.75x4−x3−9x2+7
[NDA I 2015]
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Question : 63 of 73
 
Marks: +1, -0
Consider the following statements
1. The function attains local minima at x = -2 and x = 3.
2. The function increases in the interval (-2, 0).
Which of the above statements is/are correct
[NDA I 2015]
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