Use Euler's method to solve
dB/dt=0.03B
with initial value B=1400 when t=0

.

A. Δt=1
and 1 step: B(1)≈

B. Δt=0.5
and 2 steps: B(1)≈


C. Δt=0.25
and 4 steps: B(1)≈