Question: Solve the given problems by determinants .Set up appropriate systems of equations. All numbers are accurate to at least two significant digits.
The increase L in length of a long metal rod is a function of the temperature T (in °C) given by L = a + bT + cT2 where a,b and c are constants. By evaluating a,b and c find L = f(T) if L = 6.4 mm for T = 2.0°C, L = 8.6 mm for T = 4.0°C and V = 11.6 mm for T = 6.0°C.