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|2+5i/5+2i|

Ajutor clasa a10a


Răspuns :

Răspuns:

se amplifica fractia cu 5-2i

|(2+5i)(5-2i)/5^2+2^2|=|10-4i+25i+10/25+4|=

=|20+21i|/29=radical(400+441)/29=29/29=1