Răspuns :
Răspuns:
4+7i1+4i=(4+7i)(4−7i)(1+4i)(4−7i)=42+724−7i+16i+28=16+4932+9i=6532+9i=6532+659i=>Re(4+7i1+4i)=65/32
Răspuns:
4+7i1+4i=(4+7i) (4-7i) (1+4i)
(4-7i)=42+724-7i+16i+28=16+4932+9i=65
32+9i=6532+659i=>RE( 4+7i+1+4i)=65/32
Răspuns:
4+7i1+4i=(4+7i)(4−7i)(1+4i)(4−7i)=42+724−7i+16i+28=16+4932+9i=6532+9i=6532+659i=>Re(4+7i1+4i)=65/32
Răspuns:
4+7i1+4i=(4+7i) (4-7i) (1+4i)
(4-7i)=42+724-7i+16i+28=16+4932+9i=65
32+9i=6532+659i=>RE( 4+7i+1+4i)=65/32