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# Complex number

I am actually wondering what is meant by complex solution mentioned in lv 5 Number and Algebra set.. is it referring to the number which can be written as a+bi where i is imaginary number ?

Note by Lawrence Limesa
3 years, 4 months ago

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The nomenclature for non-real numbers is...interesting. If the number has both a real part and an imaginary part, then it is considered "complex". If it has no real part, then it is considered "purely imaginary". · 3 years, 4 months ago

where this complex numbers are used exactly? · 3 years, 4 months ago

simple answer · 3 years, 4 months ago

yes. · 3 years, 4 months ago

definitely yes... · 3 years, 4 months ago

yup,and the answer is simple · 3 years, 4 months ago

Yeah, precisely. · 3 years, 4 months ago