MoeD1 MoeD1
  • 01-10-2017
  • Mathematics
contestada

what is the answer 5i/(2+3i)^2

Respuesta :

zrh2sfo
zrh2sfo zrh2sfo
  • 04-10-2017
Simplify the following:5 i/(3 i + 2)^2
(3 i + 2)^2 = 4 + 6 i + 6 i - 9 = -5 + 12 i:(5 i)/12 i - 5
Multiply numerator and denominator of (5 i)/(12 i - 5) by 5 + 12 i:(5 i (12 i + 5))/((12 i - 5) (12 i + 5))
(12 i - 5) (12 i + 5) = -5×5 - 5×12 i + 12 i×5 + 12 i×12 i = -25 - 60 i + 60 i - 144 = -169:(5 i (12 i + 5))/-169
i (12 i + 5) = -12 + 5 i:(5 5 i - 12)/(-169)
Multiply numerator and denominator of (5 (5 i - 12))/(-169) by -1:Answer: (-5 (5 i - 12))/169
Answer Link

Otras preguntas

Work as a class. Find in the next synonyms for the following words: gift- to tell - contemporary- suite of furniture - bright - near - big - cosy - table - pl
You sign up for 13 weeks of swim lessons. The total cost is 325$. What is the cost per week?
Which substance is a binary acid
A new law must be passed before tomorrow. Which are the auxiliary verbs in the sentence’s underlined verb phrase?A.be, passed B.must, passed C.must, be, passed
what is 1/8 divided by 2
Once a bill passes both chambers, the only way it can become law is if it is signed by the President of the United States. t or f
Explain checks and balances.
Eleanor Roosevelt was humanitarian and worked on the civil rights effort.true or false
Which of the following statements accurately describes enzymes? a. Enzymes slow chemical reactions. b. enzymes increase the activation energy of reaction. c.
The sum of complementary angles is 90 degrees. a. True b. False