calculate effective resistance

Answer:
1.411 ohm
Explanation:
Req = [([tex]\frac{2}{3}[/tex]+2)×3]÷[([tex]\frac{2}{3}[/tex]+2)+3]
so, [tex]\frac{2}{3}[/tex]+2=[tex]\frac{8}{3}[/tex]
so Req=[tex]\frac{2.667*3}{2.667+3}[/tex]=1.411 ohm