Homework Answers
complex analysis Let f(z) be continuous on S where for some real numbers 0< a <...
complex analysis
Let f(z) be continuous on S where for some real numbers 0< a < b. Define max(Re(z)Im(z and suppose f(z) dz = 0 S, for all r E (a, b). Prove or disprove that f(z) is holomorphic on S.
Al. Practice with complex numbers: Every complex number z can be written in the form z...
Al. Practice with complex numbers: Every complex number z can be written in the form z r + iy where r and y are real; we call r the real part of z, written Re z, and likewise y is the imaginary part of z, y - Im z We further define the compler conjugate of z aszT-iy a) Prove the following relations that hold for any complex numbers z, 21 and 22: 2i Re (2122)(Re z) (Re z2) -...
2a) Let a, b e R with a < b and let g [a, bR be...
2a) Let a, b e R with a < b and let g [a, bR be continuous. Show that g(x) cos(nx) dx→ 0 n →oo. as Hint: Let ε > 0, By uniform continuity of g, there exists δ > 0 such that 2(b - a Choose points a = xo < x1 < . . . < Xm such that Irh-1-2k| < δ. Then we may write rb g (z) cos(nx) dx = An + Bn where 7m (g(x)...
Part 1. (Trigonometry - Complex Arithmetic - Linear Algebra) For any real number 0, let Re...
Part 1. (Trigonometry - Complex Arithmetic - Linear Algebra) For any real number 0, let Re R2R be the linear transformation that is written in the standard basis as cosθ -sin θ sin cos 1.1. Draw a picture of the image of the unit square via R/s Describe the transformation in common words. 1.2. Compute det Re 1.3. Find (Re)-1 as a matrix. 1.4. Draw the image of the unit square via (R/s) How does this correspond to your description...
Please show your steps in details. Z is a complex number. 3. Let /(z= |Re z||Im...
Please show your steps in details.
Z is a complex number.
3. Let /(z= |Re z||Im zſ for all ze C. Show that $(z) is not differentiable at z=0.
3i)16 in polar form: z r(cos 0isin 0) where (1 Write the complex number z and...
3i)16 in polar form: z r(cos 0isin 0) where (1 Write the complex number z and e= The angle should satisfy 0 0 < 2«.
bn converges 18. Let (an)n=1 and (bn)n=1 be sequences in R. Show that if and lan...
bn converges 18. Let (an)n=1 and (bn)n=1 be sequences in R. Show that if and lan – an+1 < oo, then anbr converges.
Please include step-by-step solution. (iv) Let a be any nonzero complex number. Show that for 12...
Please include step-by-step solution.
(iv) Let a be any nonzero complex number. Show that for 12 – 20/ < |al, Z-Zo 2-20 n=0 n = 0 159)..ila). by a dr =0, 6, 11 d =0 Conclude that Z-ZO Z-ZO a for any closed (piecewise) regular curve y that lies in the disk (z – zo] < |al.
2. Let f(x,y) = e-r-u, 0 < x < oo, 0 < y < oo, zero...
2. Let f(x,y) = e-r-u, 0 < x < oo, 0 < y < oo, zero elsewhere, be the pdf of X and Y. Then if Z = X + Y, compute (a) P(Z 0). (b) P(Z 6) (c) P(Z 2) (d) What is the pdf of Z?
10. Define the complex-valued function of a complex variable f:C- Cby 0, z-0 Show that the...
10. Define the complex-valued function of a complex variable f:C- Cby 0, z-0 Show that the Cauchy-Riemann equations hold at z 0 but that f is not differentiable at z 0.
complex analysis
Let f(z) be continuous on S where for some real numbers 0< a < b. Define max(Re(z)Im(z and suppose f(z) dz = 0 S, for all r E (a, b). Prove or disprove that f(z) is holomorphic on S.
Al. Practice with complex numbers: Every complex number z can be written in the form z r + iy where r and y are real; we call r the real part of z, written Re z, and likewise y is the imaginary part of z, y - Im z We further define the compler conjugate of z aszT-iy a) Prove the following relations that hold for any complex numbers z, 21 and 22: 2i Re (2122)(Re z) (Re z2) -...
2a) Let a, b e R with a < b and let g [a, bR be continuous. Show that g(x) cos(nx) dx→ 0 n →oo. as Hint: Let ε > 0, By uniform continuity of g, there exists δ > 0 such that 2(b - a Choose points a = xo < x1 < . . . < Xm such that Irh-1-2k| < δ. Then we may write rb g (z) cos(nx) dx = An + Bn where 7m (g(x)...
Part 1. (Trigonometry - Complex Arithmetic - Linear Algebra) For any real number 0, let Re R2R be the linear transformation that is written in the standard basis as cosθ -sin θ sin cos 1.1. Draw a picture of the image of the unit square via R/s Describe the transformation in common words. 1.2. Compute det Re 1.3. Find (Re)-1 as a matrix. 1.4. Draw the image of the unit square via (R/s) How does this correspond to your description...
Please show your steps in details.
Z is a complex number.
3. Let /(z= |Re z||Im zſ for all ze C. Show that $(z) is not differentiable at z=0.
3i)16 in polar form: z r(cos 0isin 0) where (1 Write the complex number z and e= The angle should satisfy 0 0 < 2«.
bn converges 18. Let (an)n=1 and (bn)n=1 be sequences in R. Show that if and lan – an+1 < oo, then anbr converges.
Please include step-by-step solution.
(iv) Let a be any nonzero complex number. Show that for 12 – 20/ < |al, Z-Zo 2-20 n=0 n = 0 159)..ila). by a dr =0, 6, 11 d =0 Conclude that Z-ZO Z-ZO a for any closed (piecewise) regular curve y that lies in the disk (z – zo] < |al.
2. Let f(x,y) = e-r-u, 0 < x < oo, 0 < y < oo, zero elsewhere, be the pdf of X and Y. Then if Z = X + Y, compute (a) P(Z 0). (b) P(Z 6) (c) P(Z 2) (d) What is the pdf of Z?
10. Define the complex-valued function of a complex variable f:C- Cby 0, z-0 Show that the Cauchy-Riemann equations hold at z 0 but that f is not differentiable at z 0.
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