TS EAMCET · Maths · Complex Number
If is one of the values of , then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Given that, z15=2cos7π5 ⇒z155=25cos7π55 ⇒z=32cos5×7π5+isin5×7π5 =32-1+0 ∴ z=-32
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