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- Find the roots of the given complex number 1. z^3 = -2If a, b, c, d are complex roots of x 4 + 2x 3 + 3x 2 + 4x + α = 0 and ab = cd, the value of α is ....Problem 1.2 (Complex Conjugation) Consider a complex number w = x + jy, having real part Re(w) = x and imaginary part Im(w) = y, with its complex conjugate defined as w∗ = x − jy. (a) Sketch the complex plane (i) the solution to |w − j2| = 2 and (ii) the solution to |w∗ − j2| = 2. Which number(s) are common to both solutions?
- If z is a complex number that satisfies the condition: |z − 2 − 3i| = 2, thenshow that the inequality2 ≤ |z − 2 + i| ≤ 6If z1 =3+4i and z2 =− 1+2i, find z1−3z2 and z1z2.(problem of complex number)Find the complex numbers in the form of z = a + bi such that zz*= 100 and a+b= 14. Note: answers and operations in problem three should be in rectangular form.
- Problem 6, Chapter 6, Section 6.1 from the Complex Analysis for Mathematics & Engineering Textbook, fifth editionConsider the following: u,v ∈ C, we say that u is greater than v and write u > v are real and imaginary parts of a complex number. That is, now we can say that 5+3i is greater than 3+5i precisely because 5 > 3. Moreover, we can also say 5+4i is greater than 5+3i because 5=5 and 4 > 3. 1.1 Show that for any u,v∈R, u > v if and only if u > v. 1.2True or False: for any u,v∈C,u>v whenever|u|>|v|. 1.3 True or False: for any u∈C, if |u|=|v|and u >v for any v !=u ∈C, the u∈R.True or False 1.There are infinitely many values of the logarithm of a complex number z if you add 2π inits principal argument.2.Suppose the complex number z is situated along the real x axis, then the principalargument of z is equal to π.3.Suppose the complex number is in polar form 2 < 450°, then principal argument of z isequal to 450°. 4.Cofactor matrix is another matrix of order n in which all its elements in matrix A arereplaced by their respective signed minor.5.Suppose A is a square matrix with det(A)=0, then matrix A has an inverse matrix.
- Find the roots of the given complex number 1. z^3 = 2 – 3iProblem 16, Chapter 6, Section 6.3: The Cauchy-Goursat Theroem from the Complex Analysis for Mathematics and Engineering textbook, 5th EditionGiven the complex number z1= 2(cos(3π/5)+isin(3π/5)) and z2= 4(cos(37π/30)+isin(37π/30)), Express the result of z1z2 in rectangular form with fully simplified fractions and radicals.