“∑n2 = n(n+1)(2n+1)/6” has been added to your cart. Continue shopping Product Price Quantity Subtotal 1 to 6 Number Puzzle ₹180.00 1 to 6 Number Puzzle quantity ₹180.00 Brachistochrone ₹3,300.00 Brachistochrone quantity ₹3,300.00 Brain Sharpners (Hindi) ₹120.00 Brain Sharpners (Hindi) quantity ₹120.00 Periodic Table (Mounted Panel, 5' x 3.5') ₹3,000.00 Periodic Table (Mounted Panel, 5' x 3.5') quantity ₹3,000.00 ∑n2 = n(n+1)(2n+1)/6 ₹420.00 ∑n2 = n(n+1)(2n+1)/6 quantity ₹420.00 Coupon: Cart Totals Subtotal ₹7,020.00 2.5% CGST ₹4.50 2.5% SGST ₹4.50 9% CGST ₹604.80 9% SGST ₹604.80 Total ₹8,239.00 Continue Shopping Checkout