TS EAMCET · Maths · Complex Number
If \((x-i y)^{\frac{1}{3}}=a+i b\), then \(\frac{a x-b y}{a-b}=\)
- A \(a^3-b^3\)
- B \(a^3+a^2 b+a b^2+b^3\)
- C \(a^3+3 a^2 b+3 a b^2+b^3\)
- D \(a^4-b^4\)
Answer & Solution
Correct Answer
(B) \(a^3+a^2 b+a b^2+b^3\)
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