AP EAMCET · Maths · Complex Number
What is the value of
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given: 1-i39=291-i329 =2912-i329 =29cosπ3-isinπ39 As we know, cosθ±isinθn= cosnθ±isinnθ =29cos3π-isin3π =-29
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