document.write( "Question 40931: How do I evaluate the power of i in i ^97 and i^-34? Please give an explanation. Thanks. \n" ); document.write( "
Algebra.Com's Answer #26314 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! How do I evaluate the power of i in i ^97 and i^-34? Please give an explanation. Thanks. \n" ); document.write( "SEE THE PATTERN IN POWERS OF I \n" ); document.write( "1.I^1=I \n" ); document.write( "2.I^2=-1 \n" ); document.write( "3.I^3=I^2*I=-I \n" ); document.write( "4.I^4=(I^2)^2=1 \n" ); document.write( "--------------------------------------------- \n" ); document.write( "5.I^5=I^4*I=I \n" ); document.write( "6.I^6=I^4*I^2=I^2=-1 \n" ); document.write( "7.I^7=I^4*I^3=I^3=-I \n" ); document.write( "8.I^8=I^4*I^4=I^4=1 \n" ); document.write( "-------------------------------------- \n" ); document.write( "SO THE ANSWERS REPEAT WITH EVERY 4TH.POWER....SO WE CONCLUDE \n" ); document.write( "I=I^1=I^5=I^9=.........=I^(4N+1) \n" ); document.write( "-1=I^2=I^6=I^10........=I^(4N+2) \n" ); document.write( "-I=I^3=I^7=I^11........=I^(4N+3) \n" ); document.write( "1=I^4=I^8=I^12=........=I^4N \n" ); document.write( "----------------------------------------------------------- \n" ); document.write( "SO WRITE THE POWER OF I AS 4N+X...BY DIVIDING IT WITH 4 ..SAY FOR I^97...DIVIDE 97 WITH 4 TO GET 97=4*24+1...SO \n" ); document.write( "I^97=I^(4*24+1)=I \n" ); document.write( "FOR -34...WE GET -34=4*-9+2...SO.... \n" ); document.write( "I^-34=I^(-4*9+2)=I^2=-1 \n" ); document.write( " |