Question: code class = asciimath > If y = 2 x ^ ( 3 ) - 3 x ^ ( 2 ) - 1 2 x

code class="asciimath">If y=2x^(3)-3x^(2)-12x+13 then show that (a) d(y)/(d)x=0,=>x=2 or -1(b) d^(2)(y)/(d)x^(2)>0 for x=2 and d^(2)(y)/(d)x^(2)0 for x=-1
code class = "asciimath" > If y = 2 x ^ ( 3 ) - 3

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