Identify your problems but give your power and energy to solutions. – Tony Robbins
Topics discussed in this lecture:
In this lecture I am discussing word problems in chapter 6 Applications of derivatives based on Local Maxima and Local Minima.
|NCERT EXERCISE 6.5|
Question discussed in this lecture
Question 18. A rectangular sheet of tin 45 cm by 24 cm is to be made into a box without top, by cutting off square from each corner and folding up the flaps. What should be the side of the square to be cut off so that the volume of the box is maximum ?
Question 19. Show that of all the rectangles inscribed in a given fixed circle, the square has the maximum area.