Ask Question
13 April, 07:47

Which choice is equivalent to the expression below?

Ì - 20

A. - 20i

B. 2i Ì5

C. - 2 Ì5

D. 2 Ì5i

E. 20i

+3
Answers (1)
  1. 13 April, 08:00
    0
    It seems you tried to write √ (-20)

    use the fact tha - 1 = i^2

    Then, √ (-20) = √ (20i^2) = (√20) i = (√ (5*4)) i = 2√5 i = 2i√5, which seems to be what you tried to write in the option B.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Which choice is equivalent to the expression below? Ì - 20 A. - 20i B. 2i Ì5 C. - 2 Ì5 D. 2 Ì5i E. 20i ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers