Express 7i^7-6i^6+3i^3-2i^2+1 in form of a+bi
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Step-by-step explanation:
7(i^4.i^3)-6(i^4.i^2)+3i^3-2i^2+1
=7(1.-i)-6(1.-1)+3(-i)-2(-1)+1
=-7i+6-3i+2+1
=9-10i
=9+(-10)i
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