Solving Linear Differential Equations of First Order
Value s -i1...
Question
Value (s) (−i)13 is/are
A
√3−i2
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B
√3+i2
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C
−√3−i2
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D
−√3+i2
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Solution
The correct options are A√3−i2 B−√3−i2 −i=i3 Hence (−i)13= (i3)13 Now we know that cube root of unity is 1,w,w2 Thus cube root of (i3) will be i,iw,iw2 =i,√3−i2,−√3−i2