AP EAMCET · Maths · Complex Number
If , then can not be equal to
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given that, 1+i1-im=1 Here, 1+i1-i=1+i1-i×1+i1+i =1+i22 =1+i2+2i2 =2i2 =i Now, we get 1+i1-im=im=1 We know that, i4=1 From options we see that only 1934 doesnot satisfy this condition.
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