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 ( 87+ )
Otras preguntas
a sample of salt has 1.74 moles of sodium chloride. how many formula units of the ionic compound are in the sample?
When s Brianna eats chocolate whenever she gets a poor grade in math. a. Dependent Clause b. Independent Clause
Nhu and Joseph are chasing each other around the park and wrestling in the grass. This form of play is called
According to the prompt, how will you support your analysis?
In order for storage devices to be prepared for use, they must be ____________ Group of answer choices pre-prepared loaded initiated formatted
The form of government that best describes the American system before the adoption of the Constitution we use today is Group of answer choices unitary. federal.
Match each angle pair with their relationship
the relationship between psychology and critical thinking course find Rc 12 345 x y20181957y13210719
It takes 20 minutes to fill a wading pool. The pool has developed a leak through which it will empty in 30 minutes. If the hole is not fixed, how long will it t
on the provided graph, plot the points where the following function crosses the x-axis and the y-axis g(x) = -5^x + 5, what does the graph look like?
