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Grade 11Mechanics

Solution of my question plzz... Que in myy attached image..

Question image for Solution of my question plzz... Que in myy attach
Profile image of Amrit singh
7 Years agoGrade 11
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1 Answer

Profile image of Arun
7 Years ago
Dear student
 
On differentiating
 
dy/dx = 6x^2 – 30 x + 36 = 6(x^2 – 5x + 6)
 
hence x = 2, 3
 
hence maxima at x = 2 and minima at x = 3
 
maximum value = 16 – 60 + 72 + 11 = 39
minimum value = 54 – 105 + 108 + 11 = 68