Dayana Asked: October 2, 20212021-10-02T08:20:56+05:30 2021-10-02T08:20:56+05:30In: Education and learningWhich of the following is equivalent to 18-√-25which of the following is equivalent to 18-√-25A) 18 – 5iB) 23C) 5iD) 18 +5i18-√-25 1 AnswerVotedOldestRecent SaRa Professor 2021-10-02T09:23:00+05:30Added an answer on October 2, 2021 at 9:23 am Answer: A) 18 – 5iExplanation:Given number is in Complex form 18-√-25 to simplify this expressionfor simplification divide the complex number into two parts (real and imaginary number).given expression “18” is real number and “√-25” is imaginary numberTo solve the square root of √-2518 – √-25 = 18 – √25(-1)18 -√25 (√-1) = 18 – 5(√-1)For imaginary numbers, √-1 = i. Using that relation, simplify the expression is 18 – 5i Hence, the answer option A) 18-5i2Reply Share ShareShare on FacebookShare on TwitterShare on LinkedInShare on WhatsAppLeave an answerLeave an answerCancel reply Featured image Select file Browse Add a Video to describe the problem better. Video type YoutubeVimeoDailymotionFacebook Choose from here the video type. Video ID Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs". Answer Anonymously Save my name, email, and website in this browser for the next time I comment. Related Questions What does JW mean? What does GMFU mean? What are the disadvantages of anecdotal records? What is the biggest number in the world? What does BBG mean? What do Beavers eat normally? What does wya mean? What does DEKU mean?
Answer: A) 18 – 5i
Explanation:
Given number is in Complex form 18-√-25 to simplify this expression
for simplification divide the complex number into two parts (real and imaginary number).
given expression “18” is real number and “√-25” is imaginary number
To solve the square root of √-25
18 – √-25 = 18 – √25(-1)
18 -√25 (√-1) = 18 – 5(√-1)
For imaginary numbers, √-1 = i. Using that relation, simplify the expression is 18 – 5i
Hence, the answer option A) 18-5i