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SSSSS [86.1K]
3 years ago
11

Simplify.

Mathematics
2 answers:
Papessa [141]3 years ago
8 0
√-122 = √(-1) × √122                    Obs. √-1 = i

          = i × √(16×7) = 

          = i × 4√7 = 

          = 4i√7       ⇒     Answer C.
Oxana [17]3 years ago
7 0
C. 4i√7 is your answer because 
<span>
√-112 = </span>√112*√-1 = 4√7*√-1 = 4i√7
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