5 and 6 5. -/2.38 points Salg Trig4 8.T.005. Let Z1 = 2 ( cos(77) +...
COV 8. (a) Find the product [8(cos 300° + i sin 300°][5(cos 120° + i sir rectangular form. [3 pts] Express your answer in (b) Find all cube roots of the complex number cos 90° + i sin 90°. Then graph each cube root as a vector in the complex plane. [4 pts]
2. (Enter your answers in a + bi form.) Let za = 3 (cos 77 + i sin ??) and 22 = 2(cos 5 + i sin 52). Find 2122 and Zız2 -
5. B My Not -12.38 points SAlgTrig4 8.1.005. Let Z1 = 9(cos(70) + i sin(3) and 22 - 5(cos(57) + i sin(58). Find 2122 and 21. (Enter your answers in a + by form.) 2122 -
Supposez1 =4 cos 3 +isin 3 andz2 =2 cos 6 +isin 6 . Computez1z2. (a) 8(cos?π?+isin?π?) 22 (b) 4(cos?4π?+isin?4π?) 66 (c) 2(cos?π?+isin?π?) 66 (d) cos(π)+isin(π) (e) 8(cos?π?+isin?π?) 66 17. Suppose z1 = 4 (cos (1) + i sin (5)) and z2 = 2 (cos () + i sin (7)). Compute z122. (a) 8(cos (7) + i sin (7)) (b) 4(cos (4) + i sin (*)) (c) 2(cos (7) + i sin ()) (d) cos(T) + i sin(TT) (e) 8(cos (7)...
0 + 360° Square roots of 5(cos 120° + i sin 120°) 0 + 360° (a) Use the formula zk = V(cos 75 (cos 60° + i sin 60°) + i sin to find the indicated roots of the complex number. (Enter your answers in trigonometric form. Let 0 so< 360°.) n n 20 = 21 = V5 (cos 240° + i sin 240°) x (b) Write each of the roots in standard form. Zo = 5 2 + i...
5 Points] DETAILS LARTRIG10 4.5.039. MY NOTES ASK YOUR TEACHER PRAS Consider the following. Square roots of 5(cos 120° + i sin 120°) + 360° (a) Use the formula 24 - Vicos + i sin 0 + 360° to find the indicated roots of the complex number (Enter your answers in trigonometric form. Let 0 < < 100%) n П ZO 21 (b) Write each of the roots in standard form. 20- 2, Imaginary (c) Represent each of the roots...
Question 12 > Find all complex cube roots of 1-i. Give your answers in a + bi form, separated by commas. *** round to 2 decimal places Question Help: Video Written Example Message instructor Submit Question x Question 11 > Score on last try: 0 of 1 pts. See Details for more. > Next question You can retry this question below Calculate (2 + i). Give your answer in a + bi form 512 + i I x Question 10...
Consider the following Fifth roots of 32 Cos 1 32(cos 2* * is 2) (a) Use the formula 2 - Viſcos @ + 24k + 2 + / sin to find the indicated roots of the complex number (Enter your answers in trigonometric form. Letos 0 < 20.) n 20- (6) Write each of the roots in standard form. (Round all numerical values to four decimal places.) Po 24- (c) Represent each of the roots graphically. Imaginary axis 5r Imaginary...
(2 points) Find all the eigenvalues (real and complex) of the matrix 7 5 5 M = -5 -1 -2 -5 -8 -6 The eigenvalues are (Enter your answers as a comma separated list.)
Problem #6: Let u = (i, 21,6), v = (5,-21, 1+i), w = (2-i, 21, 8 + 6i). Compute (u: v) wu Express your answer in the form a + bi and enter the values a and b (in that order) into the answer box below, separated with a comma. Problem #6: -35,27 Values of a and b, separated with a comma. Just Save Submit Problem #6 for Grading Problem #6 Attempt #3 Your Answer: Attempt #1 13,27 0/2x Attempt...