03-01-2018
Mathematics

contestada

Simplify.

√-112

A. 4√7
B. -4i√7
C. 4i√7
D. -4√7

√ is a square root sign btw

Respuesta :

sbcardinals sbcardinals

03-01-2018

C. 4i√7 is your answer because

√-112 = √112*√-1 = 4√7*√-1 = 4i√7

Answer Link

ElenaClaudia ElenaClaudia

03-01-2018

√-122 = √(-1) × √122 Obs. √-1 = i

= i × √(16×7) =

= i × 4√7 =

= 4i√7 ⇒ Answer C.

Answer Link

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