Seudónimo
Seudónimo
01-02-2016
Mathematics
contestada
(3-5i)(2+9i)+(7+2i)(7-2i)
Respuesta :
Benjamin16
Benjamin16
01-02-2016
[tex]i^{2} = -1[/tex]
-----------------------------------------
[tex](3-5i)(2+9i)+(7+2i)(7-2i) = \\ \\ = 6 + 27i - 10i - 45i^{2} + 49 - 14i + 14i - 4i^{2} = \\ \\ =55 + 17i + 45 + 4 = \boxed{104 + 17i} [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 71+ )
Otras preguntas
Declaring war, controlling immigration, and regulating interstate commerce are A. powers shared by the states ang federal government B. powers given to the sta
Underline the main verb once. Italicize the auxiliary verb(s) twice. 1. Elmer has rarely exhibited a bad temper. 2. The county will try the case next month. 3.
The following graph shows a decay chain. Which part of the decay will take the most time? the decay of U-238 to Th-234, the decay of Th-234 to Ra-226, the decay
5+2+4+6+7-9+8-0+9-3=
11. Factorize: x2 - 36
is this quadrilateral a parallelogram? If yes, state the definition or theorem that justifies your answer.
(2, -16) plug in the correct variables in the equation belowy = mx + b
Which country is developing urban centers most quickly? A. China B. Egypt C. Germany D. The United States
A pizza shop delivers an extra large pizza, which is sold for \$20$20dollar sign, 20, and costs the pizza shop \$12$12dollar sign, 12 to make. The pizza shop ha
Excerpt, Theodore Roosevelt, Inaugural Address Saturday, March 4, 1905 My fellow-citizens, no people on earth have more cause to be thankful than ours, and this
