Question 181881
{{{0.4=3.7(90)/(R + R1)}}}
{{{(R+R1)= 330/0.4}}}
{{{R+R1 = 832.5}}}

{{{.001=3.7(R)/(R+R1)^2}}}
{{{.001=3.7(R)/(832.5)^2}}}
{{{(0.001*832.5^2)/3.7=R}}}
{{{187.3 = R}}}

{{{R1 = 832.5-187.3}}}