根据定义,复数 (complex numbers)是i=−1和任一实数的乘积。 什么是“主平方根”(principal square root)? Theprincipal square rootof a nonnegative real number (非负实数) is the nonnegative square root (非负平方根) of it. For example, the principal root of 4 is 2, although -2 and 2 are...
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Define I (number). I (number) synonyms, I (number) pronunciation, I (number) translation, English dictionary definition of I (number). n. Symbol i The square root of -1, corresponding to the point in the geometric representation of complex numbers as poi
Convert of the complex number in the polar form:−1+i View Solution Represent the complex numberz=1+i√3in the polar form. View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths ...
complex number A number of the form a+bi,where a and b are real numbers and i2= -1 ( or equivalently, i = √-1 ). A complex number is often denoted by a single letter, usually z, we write z=a+bi,where a = Re z(read: "the real part of z") and b= Im z("the ...
因为负数没有平方根 所以我们定义i^2=-1,我们称i为虚数，它在公式中的作用是当根的判别式b^2-4ac<0时，按照以前的思维，我们认为方程无解，但定义了i后，方程就有解了，只不过解是带复数的形式
If x=a+b i is a complex number such that x^2=3+4ia d nx^3=2+1i ,w h e r ei=sqrt(-1),t h e n(a+b) equal to .
Chapter 14 Properties of i and other complex numbersBerkeley Electronic Press Selected WorksErik TillemaEvan McClintockM. Kathleen HeidHeather L. Johnson
complex number A number of the form a +bi, where a and b are real numbers and i2=-1( or equivalently, . A complex number is often denoted by a single letter,usually z,we write z=a+bi, where a=Rez(read:"the real part of z") and b=Im z ("the imaginary part of z").I...