Question: Question: 3(C). Given the function f ( x ) = x + x4 - 2x2 +3. In the interval (-4,2 ) what are all the

Question:

Question: 3(C). Given the function f ( x ) = x +

3(C). Given the function f ( x ) = x + x4 - 2x2 +3. In the interval (-4,2 ) what are all the values for which the function f (x) is concave up and increasing? 72 (A) (-1.194,-0.653), (0.903,2) (B)(-3.709,-1.194), (0,0.903) (C)(-0.653,0.532) (D) (-2.879, -0.653), (0.532,2) (E) (-4,-3.709), (-1.194,0), (0.903,2)

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