{"product_id":"2940044395817","title":"Secondary School 'AS-Level - Core 1 \u0026 2: Maths - Trigonometry - Ages 16-18' eBook","description":"\u003cp\u003eThis eBook introduces the trigonometric ratios, the trigonometric ratios of standard triangles, the sine rule, the cosine rule, the formula to calculate the area of a triangle as well as generic trigonometric equations equation of a circle, the graphs of cos x, sin x and tan x, transformed trigonometric graphs as well as the graph and CAST methods of solving trigonometric equations in a given interval along with a selection of questions\u003c\/p\u003e","brand":"Dr John Kelliher","offers":[{"title":"Default Title","offer_id":47148334219504,"sku":"2940044395817","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940044395817_p0.jpg?v=1763662582","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940044395817","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}