document.write( "Question 33172: Express 1 + 2i in polar form. \n" ); document.write( "
Algebra.Com's Answer #19634 by venugopalramana(3286)\"\" \"About 
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Z=1+2i...DIVIDE AND MULTIPLY BY |Z|
\n" ); document.write( "|Z|=SQRT(1^2+2^2)=SQRT(5)=R SAY.....
\n" ); document.write( "Z= SQRT(5)*(1/SQRT(5)+i*(2/SQRT(5))...LET
\n" ); document.write( "COS(A)=1/SQRT(5)...THEN......SIN(A)=2/SQRT(5)...SO
\n" ); document.write( "Z=R{COS(A)+iSIN(A)}=R*E^(iA)WHERE R AND A ARE AS GIVEN ABOVE ...IN POLAR FORM THEY ARE................{SQRT(5),COS INVERSE(1/SQRT(5)}
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