Solve for *b* if 1-b/(4+isqrt3)+b/(4-isqrt3)=01b4+i3+b4i3=0?

1 Answer
Dec 16, 2017

b=(19isqrt3)/6b=19i36

Explanation:

1-b/(4+isqrt3)+b/(4-isqrt3)=01b4+i3+b4i3=0

1-[b*(4-isqrt3)-b*(4+isqrt3)]/(16-(-3))=01b(4i3)b(4+i3)16(3)=0

1-(-2bisqrt3)/19=012bi319=0

(2bisqrt3)/19=-12bi319=1

b=-19/(2isqrt3)b=192i3

b=(-19isqrt3)/(-6)b=19i36

b=(19isqrt3)/6b=19i36