Answer: option b
Step-by-step explanation:
(cos 90 + i sin 90)^i = e^( - π/2 i) i
i.e , e^ π/2 this is purely real
hope u get it n let me know...............................
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Answer: option b
Step-by-step explanation:
(cos 90 + i sin 90)^i = e^( - π/2 i) i
i.e , e^ π/2 this is purely real
hope u get it n let me know...............................