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Which choice is equivalent to the expression below?
√-27
OA. -3√3
OB. 3143
O C. -√√27
OD. -3√√37
OE. 3√3

Sagot :

E

√ -27
apply radical rule- √-a - √ -1 √ a

√ -27- √ -1 √ 27
- √-1 √ 27
i √ 27
3√ 3