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Evaluate the Expression 1+3649i211 + \frac { \sqrt { - 36 } \cdot \sqrt { - 49 } i } { \sqrt { 21 } }

Question 120

Multiple Choice

Evaluate the expression 1+3649i211 + \frac { \sqrt { - 36 } \cdot \sqrt { - 49 } i } { \sqrt { 21 } } and write the result in the form a+bia + b i .


A) 2142i\sqrt { 21 } - 42 i
B) 2142i21 - 42 i
C) 12i211 - 2 i \sqrt { 21 }
D) 21+42- \sqrt { 21 } + 42
E) 2142i- \sqrt { 21 } - 42 i

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