An excursion into school calculus
For reasons too boring to mention I happened to skim through the sample maths examination paper distributed by the CBSE board. It took only a glance to see that twelfth standard maths is a greater ordeal now (progress!). Harder integrals, multiple choice questions and it seems even linear programming has entered the syllabus. One of the questions stood out: If $(x-a)^2 + (y-b)^2 = r^2$ , for some…