Is every complex number a real number?Question:Is every complex number a real number?Complex Numbers:In mathematics, complex numbers are numbers that can be written in the form a + bi, where a and b are real numbers, and i is the imaginary number with value {eq}\sqrt{-1} {/eq}. ...
If b is not equal to zero and a is any real number, the complex number a + bi is called imaginary number. In other words, if the imaginary unit i is in it, we can just call it imaginary number.If the imaginary unit i is in t, but the real real part is not in it such as...
Answer to: Prove that if w,z are complex numbers such that |w|=|z|=1 and wz \neq 1 , then \frac{w+z}{1+wz} is a real number. By...
Prove that, if z is a complex number, then e^z+e^z and e^z* e^z are both real. What can you say about e^z-e^z and e^z÷ e^z?相关知识点: 试题来源: 解析 e^z-e^z is imaginary, e^z÷ e^z has modulus 1.反馈 收藏 ...
Letzbe a complex number such that the imaginary part ofzis nonzero anda=z2+z+1is real. Then a cannot take the value View Solution z is a complex number such thatz+1z=2cos30,then the value ofz2000+1z2000is equal to View Solution ...
300×4=1 20070×5=35070×2=14043×3=12611×8=8850×7=350300×9=2 700400×6=2 400176×0=024×2=4880×2=160故答案为:48;7 200;420;84;39;1 200;350;140;126;88;350;2 700;2400;0;48;160. 解答这道题时根据整数乘法的计算方法进行计算,用一位数分别乘另一个因数的个位和...
Imaginary numbers are also called complex numbers. When imaginary numbers are squared, the result is a negative number. Imaginary numbers are used in certain calculations, such as quadratic equations. They are the result of a real number multiplied by i, when i equals the square root of -1....
Building a Class A complex number is a number made of two real numbers, one part is called therealpart of the number, the other theimaginary. They are normally written in the form a + bia+bi where aa is the real part, bb is the imagina...
百度试题 结果1 题目The sum of a complex number and its conjugate is alwaysA:a pure imaginary numberB:1C:D:a pure real number 相关知识点: 试题来源: 解析 D None 反馈 收藏
Step 1: Define the complex number Letzbe a complex number defined as: z=x+iy wherexis the real part andyis the imaginary part ofz. Sincez≠0, we have(x,y)≠(0,0). Step 2: AssumeRe(z)=0 Assume that the real part ofzis zero: ...