subject is : numrical analysis ..

choose corect answer please ..

calculate xde by using trapezoidal 1 40 - numerical integration method, use step size h=2. what is the relative true error for this result? O A) %5 O B) 9 20 O C) % 40 OD) % 30 O E) $10 f(x)=e" - at which interval, (.x) = 0 has a root? O A) 3 4 O B) to O 12 31 OD) [12] OE) 12 49 f(x)= x - 8x2 +16x -1