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If i z^4+1=0, then prove that z can take...

If `i z^4+1=0,` then prove that `z` can take the value `cospi//8+is inpi//8.`

A

`(1+i)/(sqrt2)`

B

`cos""pi/8+I sin ""pi/8`

C

`(1)/(4i)`

D

i

Text Solution

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The correct Answer is:
B
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