“Topological Puzzle” has been added to your cart. Continue shopping Product Price Quantity Subtotal Brachistochrone ₹3,200.00 Brachistochrone quantity ₹3,200.00 (a+b)2 + (a-b)2= 2a2 + 2b2 Model ₹315.00 (a+b)2 + (a-b)2= 2a2 + 2b2 Model quantity ₹315.00 Topological Puzzle ₹1,000.00 Topological Puzzle quantity ₹1,000.00 Coupon: Cart Totals Subtotal ₹4,515.00 9% CGST ₹406.35 9% SGST ₹406.35 Total ₹5,328.00 Continue Shopping Checkout