“∑n2 = n(n+1)(2n+1)/6” has been added to your cart. Continue shopping Product Price Quantity Subtotal (a+b+c)2 Model ₹380.00 (a+b+c)2 Model quantity ₹380.00 ∑n2 = n(n+1)(2n+1)/6 ₹420.00 ∑n2 = n(n+1)(2n+1)/6 quantity ₹420.00 Coupon: Cart Totals Subtotal ₹800.00 9% CGST ₹72.00 9% SGST ₹72.00 Total ₹944.00 Continue Shopping Checkout