c) Berdasarkan fungsi jumlah kos berikut, tuliskan persamaan bagi setiap konsep kos berikut: Based on the following total cost function, write an equation for each of the following cost concepts. TC=4000 + 50 + 1092 i) Total variable cost (TVC) ii) Average variable cost (A VC) i) Average cost (AC) iv) Marginal cost (MC) (4 markah/marks) d) Tayaru Co. Lid. menghasilkan tayar go kart berkualiti tinggi. Fungsi pengeluaran syarikat tersebut diberikan oleh Tayaru Co. Lid. produces high quality go kart tyres. The company's production function is given as Q = 50010.6 KO.8 di mana: where: Q = output tahunan / annual output L = buruh diukur dalam bilangan jam / labor measured in person hours K = modal diukur dalam bilangan jam / capital measured in machine hours. Andaikan pekerja Tayaru memperoleh RM15 sejam dan syarikat menganggarkan caj sewa sebanyak RM50 sejam ke atas modal. Tayaru meramalkan kos tahunan sebanyak RM500,000 setahun. Suppose that Tayaru's employees earn RM15 per hour and the company estimates a rental charge of RM50 per hour on capital. Tayaru forecasts annual costs of RM500,000 per year. i) Terbitkan persamaan keluaran marginal buruh (MPL) dan keluaran marginal modal (MPK) bagi syarikat ini. Derive the company's marginal product of labor (MPL.) and marginal product of capital (MPK) equations. (2 markah/marks) ii) Cari kombinasi modal dan buruh yang optimal bagi syarikat ini. Find the optimal combination of capital and labor for this company. (5 markah/marks)