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Express √-72 as a fully simplified complex number, in terms of i:
√-72 =
Get help:
Box 1: Enter your answer as a complex number in a+bi form. Example: 2+5i
Enter each value as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Decimal values are not allowed
6√2i