Question

if x +iy =(a+ib)^3 then show that x/a + y/b=4(a^2 - b^2)​

Answer 1

Step-by-step explanation:

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Answer 2

Answer: Here's your answer  Step-by-step explanation: x+iy=(a+ib)^3 x+iy=a^3+b^3i^3+3a^2bi+3ab^2i^2 x+iy= a^3- b^3i+ 3a^2bi- 3ab^2 x+iy= ( a^3-3ab^2) + ( b^3-3a^2b)i Equating real and imaginary part-